Three Rivers Ranch’s Newsfeed

Thank you for visiting our newsfeed.  You’ll find the latest news on the Henry’s Fork of the Snake River, fishing news from around Idaho, and other news from Three Rivers Ranch.


Henry’s Fork Dodges a Rain-on-Snow Bullet

Despite a forecast for conditions that could have resulted in large loss of snowpack yesterday, atmospheric conditions lined up just right to not only avoid the loss but actually gain a very large amount of snow-water-equivalent (SWE). Read on for the details, as well as for an example from the spring of 2010 that illustrates a very large rain-on-snow event. May 2010: What an extreme rain-on snow event can look like As we anticipated the possibility of a rain-on-snow event earlier this week, Ron Abramovich from the Natural Resources Conservation Service reminded me of a large event in the spring of 2010. To give you some idea of the magnitude of that event, the White Elephant SnoTel site received 8.5 inches of precipitation from May 24, 2010 through June 7, 2010. SWE at that site dropped from 13.8 inches on May 24 to 0 on June 2. This means that a whopping 22.3 inches of total water ran off into the upper Henry’s Fork over that two-week period. The spike in streamflow from that event is readily apparent in the following graph, which shows this year's natural flow to date, average streamflow, and that in water-year 2010, which was a

Henry’s Fork Dodges a Rain-on-Snow Bullet 2018-03-23T20:06:44+00:00

House Bill 496 and Harriman State Park

  For those following House Bill 496, here is a brief review and update.   The concern, as brought to our attention by the Friends of Harriman State Park, is that House Bill 496 could potentially violate the Harriman Gift Agreement (HGA, or "Agreement") condition that requires the Idaho Department of Parks and Recreation staff be chosen based on merit. House Bill 496 would shift the authority to appoint the directors of the departments of Parks and Recreation, Transportation, and Corrections from a Board to the Governor of Idaho. The Idaho State Attorney General has reviewed the bill and has released a legal opinion stating that the bill does not violate the Harriman Gift Agreement. However, as with most legal matters, other opinions are possible.    The bill is currently in General Orders where House members will work together until there is a majority consensus to amend it, move it, or vote on it. Because other legal opinions may differ on whether the bill violates the Agreement, we think it prudent that the bill be amended to remove all reference to the Department of Parks and Recreation.​​​​​​​     If You'd Like to Get Involved If you are a resident of Idaho, you may contact your representatives directly by phone or email to

House Bill 496 and Harriman State Park 2018-03-08T08:06:41+00:00

Long-time Watershed Council participant Stan Clark passes at age 89

The Henry’s Fork Watershed Council, as well as the larger water-management community in Idaho, lost long-time participant Stan Clark, who passed away in his sleep on February 9 at age 89. Stan at a Henry's Fork Watershed Council meeting in 1995. Stan grew up on the family farm south of Ashton, where he subsequently farmed, ranched, and raised his family. Active in water management until the day he passed, Stan participated in the Watershed Council since its inception in 1993 and was a former member of the Committee of Nine, the advisory body for Water District 01. He also served as Chair of the Marysville Ditch Company and was appointed in 2000 by then-Governor Dirk Kempthorne as liaison between the governor’s office and the Idaho Department of Water Resources. More recently, Stan was active in the Eastern Idaho Water Rights Coalition and served on the board of Recharge Development Corporation.     Stan was known for his thoughtful, respectful, and insightful input at Watershed Council meetings and other venues. Always an optimist, Stan brought a smile, years of experience, and humorous accounts of earlier days to every meeting. I knew Stan for over 20 years and considered him a mentor. Stan’s

Long-time Watershed Council participant Stan Clark passes at age 89 2018-02-13T08:10:10+00:00

A Warm Winter

  It’s no secret that 2018 has been much warmer than we’re used to (in January, 5 degrees F warmer than normal across the whole watershed and as high as 7 degrees F above average in Island Park). At the same time, HFF has been reporting SWE (snow-water equivalent) numbers at 96% of average at the end of January (as high as 103% of average this past week), above average streamflow, and near average precipitation across the watershed (not to mention 111% of average Jan. precipitation at Island Park). If you’re looking out your window in Island Park right now, you’re probably wondering, “How is that possible?”   Here’s the deal. This is a good news, bad news situation. The short version is: 1) we’re concerned about early runoff on the Fall and Teton Rivers (what’s so special about those two?); but 2) there is a good amount of moisture up high (that SWE number) AND 3) these high winter flows and warm temps are just about the most ideal conditions you could ask for in terms of overwintering survival of juvenile trout (READ: we should have a banner recruitment year in 2019). Let’s work through this in chronological order.

A Warm Winter 2018-02-09T20:08:19+00:00

Eastern Idaho Fly Fishing Report – Jan / Feb 2018

As winter rolls along, we have experienced much higher water on the three major rivers fished here in Eastern Idaho. The South Fork of the Snake is the most prominent example as the winter flows from Palisades Reservoir (still hovering around 90% full) are higher than in many recent years for this time of year. Unfortunately, many of us look forward to fishing the South Fork in winter as the flows are usually around 1,000 CFS. Last week they bumped the levels to nearly 3,500 CFS, and it is impossible to walk and wade the usual haunts. The boat put-ins are pretty much closed, so the South Fork has been a non-issue this 2018 winter. The Teton River, our local jewel here in Teton Valley, has been pretty much frozen for a few weeks. The determined angler can find open pocket water here and there, but it is few and far between. This is not remarkable for mid-winter, and most know it is not a viable location for this time of year unless you are shooting at ducks. The good news this winter has been the Henry’s Fork, and many anglers are taking advantage of near-regular flows for mid to

Eastern Idaho Fly Fishing Report – Jan / Feb 2018 2018-01-26T23:51:33+00:00

Henry’s Fork Fishing Report – January 2018

Lower Section (Ashton downstream):  Nymph fish in the early or late part of the day. Look for rising fish on midges in afternoon during the warmest part of the day. Cold nights and mornings have some sections of the river with slush and ice jams floating around. Streamer fishing, Nymphing with possible midge adult dry fly action in mid-afternoon. Upper Section (Ashton Upstream): Nymphing with either stone nymphs or zebra midges with glo-bug egg patterns. Look for rising fish in mid-afternoon on adult midges or clusters. Streamer fishing all day is an option as well. Slower stripping! Cold nights and mornings have slush and ice jams floating around on certain sections of the river. Weather Outlook:  Snowy with Colder temps. Upper 20’s for highs and teens & single digits for the lows.  Dress warmly with lots of layers. Stop by our Ashton Fly Shop to stock up on flies or give us a call at (208) 652-3008 for more fishing info.   Henry's Fork near Island Park, ID Henry's Fork near Ashton, ID The post Henry’s Fork Fishing Report – January 2018 appeared first on TRR Outfitters.

Henry’s Fork Fishing Report – January 2018 2018-01-19T23:48:06+00:00

Boise River Fly Fishing Report – January

The South Fork of the Boise is at its normal winter flows of 302 CFS. We are seeing some good baetis hatches along with a few midges in the mid-afternoon and evenings depending on the day. Nymphing has been the most productive technique, try using a stonefly pattern like a rubber leg or leech with a small pheasant tail, zebra midge, or copper john as a dropper. Streamer fishing has picked up in the deeper holes with natural colored sculpin patterns and baitfish patterns. Remember it’s barbless single hook only on this stretch of river. TIPS:  Look for those overcast, rainy days for the best late fall Baetis hatches. Stop by or call our Boise Fly Shop for up to date information on where to fish and what to use. (208) 939-6065   Boise River - In Town @ Glenwood Bridge South Fork of the Boise @ Anderson Ranch Dam The post Boise River Fly Fishing Report – January appeared first on TRR Outfitters.

Boise River Fly Fishing Report – January 2018-01-18T23:48:30+00:00

Owyhee River Fishing Report – January

With flows at around 38cfs, you’ll be doing a lot of stalking for mid-afternoon risers keying in on small Baetis and Midges. This time of the year we try and give the river a break since the Browns are in post spawn and some can still be seen guarding redds. Even though the spawn is mostly done, by walking through the riffles, and trampling through redds can still damage the eggs. That being said, it can still be a great winter fishery on the right day. If you’re not seeing any top activity, try running shallow rigs of zebra midges, hares ears, and Baetis emerger nymphs, all in sizes 16-22. Fish long leaders of 5x or 6x in the 10-12 foot range for best results when targeting those risers. Also, I like to fish small foam indicators with shallow light rigs to effectively fish this small water. Watch out for Redds as a lot of the shallow gravel zones will have them. Please do not target fish on redds. Good Luck! **There are only a few months until spring fishing on the ‘O’, hope this two-fer get you excited!  It does me! Owyhee River below the Dam Owyhee River near

Owyhee River Fishing Report – January 2018-01-18T23:48:33+00:00

TRR Outfitters’ 2017 Holiday Guide

What gifts should I get a fly fisherman? Things are getting pretty festive around here, and as we all start to prepare for the holidays, some of you might be racking your brain trying to think what to get the fly fisherman in your life. Our fly shop is full of fantastic gear that any angler would want, but finding that right gift is still tricky. To help prevent the wide-eyed glassy stare when you come in, check out our holiday guide. The Stocking Stuffers We have several fresh off the press new shop t-shirts and sweatshirts. Want to give something extra special? Ask us about our custom options. Hats, hats and more hats. Any fly fisherman will tell you that they cannot have enough hats. Come check out our endless selection of Patagonia, Fishing with Feathers, Rep your Water and Three Rivers Ranch hats. The Essentials The essentials, also known as the socks and underwear of Christmas. Although they may not be the most exciting gifts under the tree they are most important. Come by the shop and have one our guides put together a Tacky Fly box ($24.95) complete with custom nymphs (+Flies up to $70.00) used for fishing our local rivers here

TRR Outfitters’ 2017 Holiday Guide 2017-12-05T23:49:52+00:00

Safeguarding Idaho’s Economy in a Changing Climate summit held at Henrys’ Fork Foundation Community Campus

Earlier in November, the Henry’s Fork Watershed Council hosted a satellite location of Safeguarding Idaho’s Economy in a Changing Climate, a two-day a summit held November 16th and 17th. Invited speakers represented a broad sample of private businesses, public agencies, tribes, and NGOs in Idaho from Simplot and HP to the EPA and Idaho Dept. of Lands to Trout Unlimited. See the complete list of speakers here. Speakers gathered in Boise and their presentations were live-streamed to three organized satellite locations in Pocatello (Idaho State University), Moscow (University of Idaho), and Ashton (Henry’s Fork Foundation). Absorbing the broad perspectives provided by the presenters in Boise was only half of what the summit offered! The last 2-3 hours of each day were devoted to breakout sessions where summit participants at all four locations focused on some aspect of Idaho’s economy that has been and will likely continue to be affected by climate change. The breakout sessions utilized a concept called Human Centered Design to create and prototype solutions to safeguard Idaho’s economy in a changing climate. Human Centered Design is a highly structured process that allows a diverse group of people to incrementally work toward designing solutions toward a common goal

Safeguarding Idaho’s Economy in a Changing Climate summit held at Henrys’ Fork Foundation Community Campus 2017-12-01T08:08:35+00:00