The Search For The Elusive San Luis Valley Rio Grande Cutthroats Continues

August 2024

For Day 1 of my most recent search for elusive San Luis Valley cutthroats, see: http://hooknfly.com/2024/08/25/colorados-san-luis-valley-stronghold-of-the-rare-rio-grande-cutthroat/

For a sampling of some other of my Rio Grande Cutthroat adventures in the San Luis Valley, see http://hooknfly.com/2019/09/27/lake-fork-of-the-conejos-river-solitude-in-a-sanctuary-for-rare-rio-grande-cutthroat-trout/ ; http://hooknfly.com/2021/09/14/prospecting-for-trout-on-the-fab-five-forks-of-the-conejos-river-2-the-adams-fork/

Prelude:  The comeback story of the endangered Rio Grande Cutthroat is an encouraging one.  Once found in waters throughout the Rio Grande River drainage in southern Colorado and northern New Mexico and even in the Pecos River in Texas, its range had shrunk to less than ten percent of the historic area due to a variety of causes like habitat destruction and introduction of invasive species like rainbow and brook trout.  But a cooperative effort by government agencies like the federal Fish and Wildlife Service and Colorado Parks and Wildlife as well as conservation groups such as Trout Unlimited has brought this stunningly beautiful fish back from the brink. 

One of the pure delights of the angling adventures of this aging septuagenarian fly fisher has been to sample several of the streams in the San Luis Valley like Medano Creek in the Great Sand Dunes National Preserve and the Adams and Lake Fork of the Conejos River that provide safe harbor for this striking, rare fish.  I am infatuated with its gorgeous colors and as much by the wild country where the Rio Grande Cutts survive and thrive, streams that you have to work to get to and offer quiet solitude upon arrival. 

Rio Grande Cutthroat From A Remote Creek In The San Luis Valley

Given its status, I am extra cautious in following any applicable state regulations (e.g., flies only, catch and release) and handle each catch with extreme care before returning the fish to the water.

Recently, in doing some on-line research about the current status of recovery efforts, I stumbled on a couple of interesting reports from 2008 and 2016 entitled “The Range-Wide Status of Rio Grande Cutthroat Trout.”  The 100-page plus studies, put together by a team of state and federal wildlife and land management agencies and the Jicarilla Apache Tribe, identified a host of smaller, little known creeks and streams that were documented as having viable Rio Grande Cutthroat populations along with summaries of efforts to protect and improve habitat for the trout.  Illustrative maps depicted the stretches of these waters that held viable Rio Grande Cutthroat populations. 

Three caught my eye in Saguache County, Colorado, that marked the northern most range of the Rio Grande Cutthroat—Jacks, Cross, and East Middle Creeks, lying just south of the Continental Divide and the range of the Greenback Cutthroats over the mountains in the Arkansas River drainage.   All three are in the drainage of Saguache Creek, on of my favorite trout streams. The reports stated that there were decent populations of the fish—from 150 to 400/mile–in each water with fair but suitable habitat.  In one—East Middle Creek, a tributary of Middle Creek—the reports noted the existence of a stream barrier high in the upper sections of the creek such as waterfall or a small dam/drop structure to protect cutthroat populations from intrusion by invasive species like brook trout from below. (cp004 in the map below) These creeks are located close together about a dozen miles or so west of the small town of Saguache and just over an hour’s drive from my cabin near Salida, Colorado.  Who could resist exploring?  Do those streams still hold the rare Rio Grande Cutthroats?

On Day One of my quest in July, I reconnoitered Cross, Jacks, and Middle Creeks.  It was an enjoyable outing, and the brook trout were very cooperative on Middle Creek.  (For Day 1 Follies, see http://hooknfly.com/2024/08/25/colorados-san-luis-valley-stronghold-of-the-rare-rio-grande-cutthroat/ ) But the cutthroat proved elusive.  I started to question whether any of the cutts existed this far north in the San Luis Valley.  Supposedly they survived high up in East Middle Creek, several miles above the confluence with Middle Creek, but I was beginning to have my doubts.  The only way to find out was to break out the hiking boots and fly rods and hit the trail.

Day 2:  Searching for the Elusive East Middle Creek Cutthroats

A month later in early August, I woke up in the middle of the night in a cold sweat. In a disturbing dream I had fished for days on end nonstop on East Middle Creek, searching for the elusive Rio Grande Cutthroats reputed to be there, but had been skunked time and again.  A true angler’s nightmare.  From past experience, I knew the only antidote was to plan a trip post haste to East Middle Creek to prove the cutts are really there.  And I would need a witness, so in the morning I rang my ace photographer friend Jody Bol to accompany me and document their existence.

A couple of weeks later we are bouncing up CR 38FF towards the Middle Creek trailhead.  The road is rougher in spots than last month and pocked by occasional mudholes from all the rain the area has been getting during the so-called monsoon season—maybe a grand total of a couple of inches, which is substantial for this high mountain valley desert.   I have checked the State Of Colorado on-line flow gauge for Saguache Creek downstream as none exist for Middle or East Middle Creeks.  It shows that Saguache Creek is running high which may be a good indicator that there will be enough water in the smaller tributaries that are shallow this time of year under normal circumstances. 

Soon we come to the trailhead and prepare our gear for what will be a day-long outing of about eight miles roundtrip to the supposed cutthroat lair and back. 

Middle Fork Trailhead

I am going to wet wade today so pull on my new Simms Flyweight fishing boots designed for hiking as well as wading.  I will be carrying only one rod, a short 7.5 foot wand that should be easier to cast with in the tight quarters of East Middle Creek.  I have rigged it with a #16 bushy Royal Stimulator that produced well back in July.  It’s a reasonable facimile of the grasshoppers clacking loudly as the flitter about, and more importantly it floats like a battleship and can be seen easily by aging eyes.  

We hit the trail around 9:30 a.m. for the first mile of hiking along Middle Creek to the confluence with East Middle where the cutthroat allegedly swim. 

Photographer Jody Bol On The Trail

The weather is 60 degrees under a beautiful cloudless Colorado bluebird sky.  The trail is a bit damp in spots and lined with an abundance of gorgeous wildflowers—blue asters, dwarf mountain goldenrods, and lupines.

Jody disappears from time-to-time to snap photos.  In a herculean exhibition of will, I refrain from sneaking down the slope to Middle Creek where I can see fish rising in the alluring beaver ponds that yielded many will brook trout on my last trip up here in July. 

Iron Will Resists MIddle Creek Beaver Pond Temptation

We cover the route to the confluence in about 45 minutes and come to the spot above the confluence where the trail crosses East Middle Creek and then splits. The water is running a bit lower than a month ago but is clear and cold.  We decide to take a quick break and a sip from our water bottles.  Of course, now I can’t resist at least one cast…ok, maybe a few…into the inviting bend pool!  Back in July I caught a scrappy brookie here, but maybe there’s a cutthroat in there fraternizing with the invaders from the eastern USA.  My first cast is a bit short, and the fly skirts the edge of the pool in water only a few inches deep.  No dice.  I lengthen my line a few feet and recast.  This time the Stimi alights close against the bank above the pool and swirls enticingly into the deeper water.  There’s a flash, and I am onto an lively fish, but alas I can see from its orange trimming that it’s a brook trout.

Colorful Brookie Kicks Off The Trip

After some quick pix of the spunky fish, we cross over the water and follow the trail a short distance where it splits.  To the left would take us to the west back to where the trail intersects and then follows Middle Creek to the north.  We turn to the right and hike the trail as it parallels East Creek upstream to the reputed cutthroat water. The hike is a pleasant one with a generally modest grade and a cool breeze blowing.   The wildflower show seems to get even more incredible as we climb, carpeting the edges of the trail and slopes with gentle beauty.

Wildflowers Carpet The Landscape

Our plan is to descend to the creek whenever we spy a relatively open stretch with sufficient depth and that isn’t overgrown so I can safely cast a fly and that might hold some prized cutthroats.  For the first half hour or so, they are few and far between.  Most of the creek is hidden in thickets of willows, tree branches, and fallen logs.  But where I can find a stretch that has some pools that will provide a hideout for trout and I can manage to thread my casts over logs and dodge overhanging branches or have enough elbow room to try an unorthodox downstream float, the trout are there and hungry. Every short stretch produces two or three.  Unfortunately, they are not cutthroats, but chunky brookies that can’t resist the Stimi that they mistake for one of the grasshoppers buzzing about everywhere.

We continue on for another mile, sampling the stream whenever we find a decent-sized opening in the thicket.  But it’s more brookies which have taken over the creek en masse.  Then just when I am getting despondent about the chances of finding any cutthroats we come to a picture-perfect active big beaver pond complete with a photogenic beaver lodge. 

Trout are rising steadily in the center of the pond.  The dam is definitely large and high enough that it could be the barrier that stops the brookie invasion.  Fearlessly, I start to work my way across the beaver dam to get within casting distance of the risers, all the while doing do my best imitation of a tight-rope walker.  To make things more dicey, the beaver have chinked the top of the dam with mud to stop any leaks. Somehow I survive the gooey mess and carefully unfurl a cast that astonishingly avoids snagging in the trees that are lined up below the dam.  I let the fly settle then strip it in slowly across the surface.  A couple of twitches and the water explodes as a decent-sized fish tries to devour the fly.  He misses.  I reload and throw another cast that is intercepted in the clutches of a dastardly willow tree behind me.  I issue some choice expletives then miraculously pull the offending branch close enough that I can wriggle the fly loose.  A good omen, as my next offering alights near where a good fishing has been rising, and he immediately gulps down my offering.  My rod bends nicely as the fish jumps then dives for safety of a pile of submerged logs.  In preparation for a celebratory cutthroat trout, I do my patented sashaying 360 degree pirouette retrieve, and after a good battle, he relents. 

My blood pressure spikes as I await the verdict…. brookie or cutthroat?.   Aarghh!!  Another chunky brookie has eaten the Stimi! 

Weight Watchers Candidate

Five casts and five fish later—all brook trout—I dejectedly begin navigating back across the beaver dam, an impressive high-wire act reminiscent of the famous Flying Wallendas, to renew the search for cutthroats further upstream.

Septuagenarian Death Wish

Soon the high peak of Mount Antora, an almost 14-teener, peeks above the horizon signaling the headwaters of East Middle Creek can’t be far ahead. 

Mount Antora Above On The Continental Divide

In another half mile the creek hangs a turn to the south and heads up a steep ravine flanked by the trail high above.  My resolve is wavering on whether to continue further up a series of switchbacks when I come to a sign from Colorado Parks and Wildlife featuring a handsome Rio Grande Cutthroat and catch and release regulations.  Has to be an good omen so I continue up the switchbacks that climb up the steep slope.  Hope springs eternal!

A Sign From The Fishing Gods??

The climb in my heavy wading/hiking boots is no picnic in my now soaking wet, so-call flyweight wading boots.  But I can hear the creek roaring over a hundred feet below and can see a series of enchanting clear pools. 

Then in the canyon below I spot what we have been looking for—the brook trout barrier in the form of a four-foot waterfall that probably is high enough to stop the invaders. 

Brook Trout Barricade!

After the series of steep switchbacks, the trail soon reaches a plateau at almost 10,000 feet elevation then descends a short distance down an easy slope to the creek which is nestled in a small valley above the waterfall. The gradient here is much gentler, and the creek is less overgrown.  The casting will still be in tight quarters and there are big logs toppled into the water here and there, but mercifully more open water without the heavy bushwhacking I had to do downstream of the waterfall. 

The first pool looks promising and immediately a fish pushing at least two inches bumps the fly with her nose repeatedly, nibbling away.  I have to laugh—talk about eyes being bigger than her stomach.  I carefully recast a little further up in the pool.  This time the fly disappears as a good trout smacks it and dives. 

Cutthroat Hideout??

It’s a stout fighter and as it thrashes on the surface looks to be a veritable leviathan of 10-11 inches! The battle continues and I catch a silvery glint as the fish rolls—something you wouldn’t expect from a brook trout.  BINGO!  As the fish slides closer, I see the hallmark orange slash along its throat, a wild, grand Rio Grande Cutthroat!!  I’m beaming—all that trudging and bushwhacking has paid off. A quick photo, and the cutthroat scoots back to his lair. 

The Beautiful, Elusive Rio Grande Cutthroat

Now I pause and reflect.  It feels like a near-religious experience to gently cradle such a beautiful, rare creature in my hand in the northern most reaches of his kind. 

Appreciating The Beauty And The History, Contemplating The Future

I think of his lineage, a long line of ancestors that have plied these waters through the centuries.  Of the Utes and other Native Americans who were stewards of this land and water and how they and the cutthroat trout lived together for decades in a balanced nature before the white man intruded.  I take consolation that there is a strong coalition of conservation groups and federal and state agencies like Colorado Parks and Wildlife that are successfully protecting the Rio Grande Cutthroats today and rebuilding its numbers in dozens of waters throughout its range in Colorado and New Mexico.  I tip my hat to them and look forward to reporting more in the future about how their handiwork is paying off here on remote East Middle Creek and elsewhere in the San Luis Valley, a gift to future generations. 

Colorado’s San Luis Valley:  Stronghold Of The Rare Rio Grande Cutthroat

July 2024

For Day 2 of the quest for rare Rio Grande Cutthroats in Colorado’s San Luis Valley,see http://hooknfly.com/2024/08/28/the-search-for-the-elusive-san-luis-valley-rio -grande-cutthroats-continues/

For a sampling of another of my Rio Grande Cutthroat adventures in the San Luis Valley, see http://hooknfly.com/2021/09/14/prospecting-for-trout-on-the-fab-five-forks-of-the-conejos-river-2-the-adams-fork/

The comeback story of the endangered Rio Grande Cutthroat is an encouraging one.  Once found in waters throughout the Rio Grande River drainage in southern Colorado and northern New Mexico and even in the Pecos River in Texas, its range had shrunk to less than ten percent of its historic area due to a variety of causes like habitat destruction and introduction of invasive species like rainbow and brook trout.  But a cooperative effort by government agencies like the federal Fish and Wildlife Service and Colorado Parks and Wildlife as well as conservation groups such as Trout Unlimited has brought this stunningly beautiful fish back from the brink. 

One of the pure delights of the angling adventures of this aging septuagenarian fly fisher has been to sample several of the streams in the San Luis Valley like Medano Creek in the Great Sand Dunes National Preserve and the Adams and Lake Fork of the Conejos River that provide safe harbor for this striking, rare fish.  I am infatuated with its gorgeous colors and as much by the wild country where the Rio Grande Cutts survive and thrive, streams that you have to work to get to and offer quiet solitude upon arrival. 

Rio Grande Cutthrout From A Remote Creek In The San Luis Valley

Given its status, I am extra cautious in following all applicable state regulations (e.g., flies only, catch and release) and handle each catch with extreme care before returning them to the water.

Recently, in doing some on-line research about the current status of recovery efforts, I stumbled on a couple of interesting reports from 2008 and 2016 entitled “The Range-Wide Status of Rio Grande Cutthroat Trout.”  The 100-page plus studies, put together by a team of state and federal wildlife and land management agencies and the Jicarilla Apache Tribe, identified a host of smaller, little known creeks and streams that were documented as having viable Rio Grande Cutthroat populations along with summaries of efforts to protect and improve habitat for the trout.  Illustrative maps depicted the stretches of these waters that held viable Rio Grande Cutthroat populations. 

Three caught my eye in Saguache County, Colorado, that mark the northern most range of the Rio Grande Cutthroat—Jacks, Cross, and East Middle Creeks, lying just south of the Continental Divide and the range of the Greenback Cutthroats over the mountains in the Arkansas River drainage. Better yet, they are only an hour’s drive from my cabin near Salida, Colorado.

From The Reports: CP030 and CP 004 Mark Jack, Cross, and East Middle Creek In Saguache County, CO

All three are in the drainage of Saguache Creek, on of my favorite trout streams. The reports stated that there were decent populations of the fish—from 150 to 400/mile–in each water with fair but suitable habitat.  In one—East Middle Creek—the reports noted the existence of a stream barrier high in the upper sections of the creek such as waterfall or a small dam/drop structure to protect cutthroat populations from intrusion by invasive species like brook trout from below.  These creeks are located close together about a dozen miles or so west of the small town of Saguache, Colorado.  Who could resist exploring?  Do those streams still hold the rare Rio Grande Cutthroats?

Day 1:  Exploring Cross, Jacks, and Middle Creeks

In early July I decide to do a little reconnoitering so headed south from my cabin early one morning towards Saguache on US Highway 284 over Poncha Pass then west on Colorado 114 until the turnoff to the north on Saguache County Road EE 38.  I opt first to take a look at Jacks Creek and its tributary Cross Creek to the northwest before heading up the 10-mile stretch on CR 38FF to the Middle Creek Trailhead from where I could hike up to the confluence with East Middle Creek. 

I gun up the good gravel road pushing the speed limit of 40 miles an hour, anxious to see these two Rio Grande Cutthroat bastions.  I slow as I cross over Cross Creek—beautiful and clear and definitely with enough water to float some cutties.  Just ahead to the west I spy a faint two-track that parallels Cross Creek to the north and turn off to explore.  Around a bend I go a short distance only to be met by a stout barbed wire fence announcing it is private property.  Ok, maybe Jacks Creek will offer more. (I’ll later learn from Colorado Parks and Wildlife staff that the Rio Grande Cutthroats are doing well in Cross Creek.)

I retrace my route back to the county road and continue upstream paralleling Jacks Creek which is several hundred yards south from the road at this point.  As I continue west, I am confused a bit by what looks to be a lot of wood cuttings/piles in the valley.  In another mile or so the creek swings close to the road so I stop and jump out to explore.  The creek is so tiny as to be invisible.  Then it dawns on me those wood piles are trees that have been washed down the valley by a tremendous flood in the last year or two.  In one spot a tangle to branches and trunks is jammed up over 10 feet high against a stand of big aspen trees on what had been the banks of the creek.  The creek bed itself is scoured and completely washed out in long stretches, with the sad remains only a few feet across and a few inches deep.  I don’t see a fish anywhere.

Jacks Creek Wipeout

I continue upstream until I come to a fork in the road.  Here a see a herd of cattle tromping in the creek, adding to the habitat destruction. 

Uncontrolled Grazing By Cattle Has Added To The Jacks Creek Carnage

Soon I cross over Jacks Creek and again the damage is evident.  I do see a couple of minnow-sized fish darting into one-foot-deep hole, but again as a viable trout habitat it has been destroyed.  I can only shake my head thinking of the carnage wreaked on the cutthroats by that torrent plus the cattle. This devastation on Jacks Creek underscores the importance of the efforts to protect Rio Grande Cutthroat habitat. Floods, wildfires, overgrazing, and development can all snuff the life out of a stream in no time flat.

Back on the main road I drive further northwest until I came to a gate and private property sign blocking the route.  Whether anything of Jacks Creek above survives I can’t tell, but I am not optimistic.  I turn and head back towards the junction with the road to East Middle Creek, CR38FF, hoping for the best there.

The route to the Middle Creek trailhead (where the mile hike to the confluence with East Middle Creek begins) is about 10 miles over a good gravel road.  The first five miles are on public land, but the last five snake through private property starting with the historic Middle Creek Ranch.  Here and there ranch buildings and corrals can be seen, then views old cabins and new second homes pop up along the drive.  When I arrive at the trailhead, I am surprised to find it empty on a holiday weekend and even more so with the relatively posh flat and shady camp site with a picnic table and deluxe pit restroom facilities nearby. 

I ease out of my SUV and to size things up walk over to the steep slope that plunges down to Middle Creek to the west.  I immediately spy some big beaver ponds below and good-looking stretches of stream water that I can’t resist. 

Middle Creek Beaver Ponds Beckon

I decide to fish my way up to East Middle Creek and on the way see if any cutthroats are hiding in Middle Creek.  The sky is clear and sun is bright but still a cool 60 degrees at 9:30 as I suit up in my chest waders.  I will carry two rods, a 7.5 foot, 3# wand with just a single dry fly, a #16 Royal Trude, and an 8.5 foot rod rigged with a #16 Royal Stimulator and a #16 green caddis larva dropper of my own creation—the famous Dirk’s Delight. 

Soon I am heading north up the good trail that wends through a ponderosa pine forest and offers occasional views of Middle Creek and beaver ponds below. 

I walk ten minutes or so upstream then cut down the slope when I see openings in the dense willow thicket along the stream and catch glimpses of open stretches and beaver ponds on the west side of the valley.  After some vigorous bushwhacking I break through into more open territory.  When I get to the creek I wade in stealthily and overturn a few streambed rocks to see what the trout might be dining on.  I find some caddis cases and a few mayfly nymphs, but not the abundant food supply I expected.   I take the water temperature, which registers a cold 42 degrees. 

Is a lack of food and icy water a bad sign?? But any misgivings are immediately dismissed in the first open run as a nice fish smacks the Royal Trude.  He cartwheels out of the water then heads upstream.  The small rod bends perilously but is up to the fight and soon a chunky 10-inch brown trout slides into my net.  Not a bad start! 

Hungry Brown Trout Starts The Fun!

From there the action is steady with a few fish feasting on the caddis, but most on top.  And after catching one more brownie a tad bigger than the first, the brook trout take over.  Most go 8-10 inches, and all are healthy and frisky.  Interestingly, the large majority of the fish are initially finning in shallow runs, not the more alluring deeper bend pools in the creek where I would usually expect to find them.  I figure the fish must be warming up with a little sunbathing. 

Soon I come to a series of beaver ponds and see a few rises here and there, maybe bigger fish I’m thinking.  I cautiously work up on the beaver dams keeping a low profile and loft a cast into a foamy flow skirting some deeper water in the pond.  All of a sudden, the dry disappears as a brookie inhales the caddis.  After a short tussle, I land a six-inch leviathan! 

Beaver Pond Leviathan

Several more quickly follow.  That will be the scene in most of the ponds I sample upstream—only a few fish succumb to the dry and most are smaller than in the creek. Go figure.  

As the air temperature rises and I work upstream, the action gets hotter, with every open stretch producing three or four brookies, a couple pushing 12 inches.  No cutts and only one more brownie materialize.  Often, I am able to cast to fish finning casually in the crystal-clear current above, and it’s great fun to watch them size up the faux insect then quietly rise and inhale it. 

Other times the brookies will jet out from an undercut bank to nail the dry midstream in a splashy show.  Some of the best spots turn out to be the plunge pools just below the beaver dams.  In one I hook a muscular, colorful brookie that looked to be the biggest of the day–over 12 inches–but I execute a long-distance release before confirmation.  Fortunately, he is followed by a half dozen hungry buddies of his that don’t escape.

Plunge Pools Below Beaver Dams Are Hotspots

By now the sun is high and my stomach is growling.  Visions of an RC Cola are dancing in my head.   I think about heading back to that picnic table but decide to hike up just a bit further to the confluence with East Middle Creek, the supposed lair of the Rio Grand Cutthroats.  I snake up valley for a few minutes then the trail turns east and soon intersects the stream.  Here I find a pretty little pool with a bend that reeks fish!  I kneel and carefully flick the Royal Stimi into the run above the pool.  The fly swirls downstream and is quickly intercepted by a lightning-bolt-quick fish that the flees back to the depths.  I think it looks like a cutt, lighter on the back than a brookie.  My heart pounds!! But my old eyes have deceived me.  It turns out to be another spunky brookie, but I have to laugh.

Cutthroat Imposter Closes Out The Day

 I remember now that the map of the barrier installed by the wildlife folk to stop the brook trout from intruding on the cutthroat habitat showed it being a mile or more upstream on East Middle Creek.  It’s been a blast catching the spunky brookies on Middl Creek, but guess I will have to come back and work harder to find the prized fish!  (Day Two Article Coming Soon!)

That cinches the deal for a stroll back to the picnic table, lunch, and my cold RC.   Along the way I enjoy a profusion of wildflowers—winsome wild roses, splashy skyrockets, bold Black-Eyed Susans, and a Rocky Mountain Bee Plant complete with a Checkered While Sulphur Butterfly.  The veritable icing on the cake of a lovely day on the water.