August 21 – Experience the Full Solar Eclipse at Three Rivers Ranch

On August 21st, 2017 we will have a rare total solar eclipse pass through the Upper Snake River Valley!  As you can see from the pictures, we'll be directly in the path.  Late August typically brings no clouds and great weather, and great fishing as well so plan accordingly.  We still have some spots available and are honoring our 2017 rates. To reserve a spot, call Three Rivers Ranch today at (208) 652-3750 or send us an email.

Idaho & Eastern Oregon 2017 Water Report

**Photos Updated on Feb 21, 2017 Snow, snow, and more snow. So far the winter of 2016/2017 has been nothing short of good news for our mountain snowpack’s throughout much of Idaho and the West. As we approach spring, we can be highly optimistic that this snowpack, in turn will provide a solid spring runoff and good water for all the rivers this coming summer. All of our Snake River Drainages are well above average for snowpack and water content so fingers crossed, it’s looking good! Do keep in mind that we still have another 2 months of snowfall accumulation to go, and in that time period a lot can change. But as of now, things are looking good. Lets break it down on some of the local snowpack drainages that feed the Boise River, Owyhee River, and our Eastern Idaho Rivers. The Owyhee River Drainage As of February 6th, The Owyhee River drainage is at 154% of normal snowpack for this time of the year. Of the many tail water rivers we enjoy, this river system needs as much snowpack as they can get to ensure us a great summer of fishing, and ample flows that will stay cool

South Fork Snake River Fly Fishing Report, Winter Fishing in Eastern Idaho for February 1, 2017

South Fork of the Snake River Fly Fishing Report: The South Fork of the Snake River has been fishing quite well.  Those of you looking for a great day, head up to the Swan Valley area.  There will be some dry fly action on sunny days and when temperatures start to get around 32 degrees and above.  When packing your fly box, make sure and take midges, rubber legs, small zebras, & dark streamers in black & dark olive.  You can also use a San Juan worm or an egg pattern, but only when you’re super desperate or approaching an “oh-fer” or close to getting skunked. Reserve your Snake River Guided Fly Fishing Trip Today.

Henry’s Fork Fly Fishing Report – Winter Fishing Report for February 1, 2017

Henrys Fork Fly Fishing Report:   The Henry’s Fork is pretty tough to fish as of lately.  The ice shelf is pretty extensive covering about 15 feet into the river.  On the lower section of the Henrys Fork, the ice shelf covers roughly 1/3 of the river.  Be EXTREMELY CAREFUL as the ice is slushy and slick!  It’s not entirely a lost cause, so don’t fret.  The best place to get a little fishing in is up near Warm River around Stone’s Bridge (the boat ramp in Warm River off Fishermans Drive).  We’re looking forward to the slightly warmer temperatures February may bring.  So look for sunny days and temperatures rising above 32 degrees. Stop by our Ashton Fly Shop & Liquor Store to stock up on flies. Flies to use:  Rubber Legs, Prince nymphs, pheasant tail, zebra midges, & streamers (black, dark olive)  

Owyhee Fly Fishing Report – February 1, 2017

Owyhee River Fly Fishing Report: The river has frozen over, and for the most part is unfishable. If you can find some open water, slow stripping small streamers and wooly buggers can be productive. Fill your fly box with small midge patterns, small baetis nymphs, small leech streamers, & wooly buggers.

Boise River Fly Fishing Report – February 1, 2017

Anderson Ranch Tailwater Fishing Report: Nymphing small bead head Baetis and zebra variations will be your best bet. Sizes 18-22 for zebra midges in black and red can be productive. Try dropping a zebra off of a brown girdle bug. No need to get an early start. Nymphing a small mayfly nymph with a zebra midge dropper has been most productive. Keep and eye out for heads throughout the day, have a good supply of BWO emergers and midges as these bows can be very finicky during the winter. Boise River In-Town Fishing Report: In these cold winter months in town, be ready to nymph fish. It can be very difficult to find any risers. You may also hook into a planter steelhead fishing sub-surface. Try a large stone fly, prince nymph, or an egg-sucking-leech to a smaller trout fly (zebra midge, pheasant tail, hare’s ear) and bounce the bottom. Nymphing hares ears, copper johns, and zebra midges have been the ticket in those faster riffles. Again, if you’re not finding fish in the fast stuff, don’t overlook the slow tail-out section of a nice run

HFF’s Top 10 — 2016

HFF’s Top-10 List 2016   For the past two years, HFF has ended the year by taking a look back at our "Top-10" accomplishments. This year, we're keeping that tradition going with HFF's Top-10 list for 2016. Before you dive in, you can also take a look back at 2014 and 2015.   10.  Trout habitat use study published in international journal. Zach Kuzniar’s HFF-sponsored master’s thesis research on habitat use by rainbow trout in Harriman State Park was published in the journal Ecology of Freshwater Fish. The study’s most important finding was that physical habitat structure in the Harriman reach during the fishing season is provided by rooted aquatic plants, which, among other things, increase water depth at a given streamflow rate. A secondary result was that adult rainbow trout seek deeper water, all other factors being equal. The paper is available online at      9.  University of Idaho fisheries graduate joins HFF science team. In August, Bryce Oldemeyer joined the HFF team as a research associate, rounding out a full-time science staff of three with respective specialties in hydrology, water quality, and fisheries. Bryce earned his master’s degree in Fisheries Science at the University of Idaho and brings to HFF eight years

Fish of the Month: Year Two

Last year at this time, I reported on year one of my resurrection of “fish of the month,” a tradition that Henry’s Fork Anglers guide Tom Grimes and I started many years ago. The goal is to catch at least one wild trout every month of the year, on a fly, in our local Idaho, Montana, and Wyoming waters. My longest fish-of-the-month streak lasted 55 months, from July 2004 through January 2009. On Thursday December 15, 2016, I successfully added month 24 to the current streak. First, the 2016 Statistics Catch: 71 Rainbow Trout, 88 Brown Trout, 21 Mountain Whitefish, 1 Brook Trout, 1 Cutthroat Trout Hours fished: 70.5 Catch rate: 2.58 fish/hr Smallest fish: 5-inch Brown Trout on June 11 Largest fish: 22-inch Brown Trout on November 13 Additional time on the river: 23.5 hours of rowing the boat so others could enjoy our local fishing, plus 114 hours of research and restoration field work Time spent on the Henry’s Fork and tributaries this year for work and fishing combined: 202 hours Number of hours spent in meetings, helping to ensure that we all continue to have the opportunity to catch a fish every month in the upper Snake

Island Park Reservoir update 12/18/2016

Conditions at Island Park Reservoir as of 12/17/2016 Reservoir contents: 72,446 acre-feet (53.6% of capacity) Mean outflow since 12/10/2016: 164 cfs by USGS gage; 161 cfs by USBR gate setting Mean streamflow through Box Canyon since 12/10/2016: 354 cfs Inflow: 0 cfs from Henrys Lake + 360 cfs reach gain from Henrys Lake to IP Mean storage rate since 12/10/2016: 386 ac-ft per day Total storage since 9/13: 51,965 ac-ft (starting value was 20,481 ac-ft) Water Supply Overview Following the Halloween rain-on-snow event, streamflows have receded to expected winter-baseflow levels (Figure 1). The increase over the past few days represents both increased streamflow during warm-sector precipitation on Thursday 12/15 prior to Friday’s cold front and the large amount of snow that fell directly on the reservoir surface during the most recent storm. Because of above-average precipitation since October 1 (Table 1), watershed inflow between Henry’s Lake and Island Park Dam has exceeded my September prediction by 869 ac-ft. Figure 1. Reach gains between Henry’s Lake and Island Park, September 1 – December 17, 2016, compared with the prediction I made in September, observed values in 2015, and the 1979-2016 average. Note that I have changed the color scheme from that

Turbidity persistence test: conclusions from the 2016 data

This fall HFF initiated a new water-quality monitoring study designed to answer the following question: How far downstream of Island Park Dam (IP Dam) do high turbidity levels persist? I introduced this study in my blog post made on September 9, 2016. Please find details of the background and motivation for this study, as well as a map of the sampling sites, in the previous blog post. The current blog post summarizes what we found during our 2016 data collection season.   Summary of the Study and Interpretation of Results Our 2016 Byers intern, Hunter Hill, collected and tested weekly samples from seven locations between IP Dam and Pinehaven from September 7th to October 28th. These data are shown in Figure 1 (black dots), along with the mean turbidity observed at each site over the sampling period (‘x’ character). Figure 1. Observed turbidity in NTU (black dots) as a function of distance from Island Park Dam (IP Dam) collected during fall of 2016. Each sampling site is labeled. The ‘x’ character displays the mean of each site’s observations over the eight sampling dates, and the dashed curve shows mean turbidity as a continuous function of distance from IP Dam. The