Drone photo taken on September 9, 2026 The Henry’s Fork Drought Management Planning Committee met on Wednesday, September 16 2026 to develop an updated reservoir
Why is Island Park Reservoir getting so low? Simply put, this has been an exceptionally low-water year. There isn’t enough natural flow to meet all
Photo of Island Park Reservoir taken Friday, August 28, 2026 The ingredients for green algae blooms, the primary culprit for turbid water in Island Park,
Island Park Reservoir on June 24, 2026 Questions answered in this article: Why are Island Park Reservoir levels so low this year? Is Island Park
The Henry’s Fork Foundation (HFF), in partnership with the U.S. Bureau of Reclamation (Reclamation), Idaho Department of Fish and Game (IDFG), and Idaho Department of
Photo of Island Park Reservoir, taken July 31 2026 Summer 2026 is the Henry’s Fork Foundation’s 11th summer monitoring conditions in Island Park Reservoir, and
In early April, when ice melted off Island Park Reservoir one month earlier than usual, scientists at the Henry’s Fork Foundation (HFF) predicted an early
This article was originally published in Island Park News on May 29, 2026 Ice melted on Island Park Reservoir on March 31, 2026—four weeks earlier
Warmer and drier conditions have slowly degraded water quality in Island Park Reservoir over the last 50 years. In the 1970s and 1980s, federal reports
Photo of an ice-free Island Park Reservoir taken on March 31, 2026 On March 31, 2026, with no accompanying commentary, HFF scientist Christina Morrisett stood
The photo above captures the unprecedented situation we face at the beginning of April. The photo, of the confluence of Warm River and the Henry’s
Every year since 2017, the Henry’s Fork Foundation Science and Technology Team has produced an annual technical report that documents all of our data collection
To address angler concerns about decreased hatches, particularly at Last Chance and the upper Ranch, and holistically assess ecological function throughout the mainstem Henry’s Fork,
As it is the afternoon of December 31, I am closing the year with my annual fish-of-the-month blog, this one at the end of my
In this blog post, we 1) present our turbidity and suspended sediment data, 2) explain our suspended load calculations, and 3) provide some additional information
The Henry’s Fork Foundation (HFF) has become aware of, and is actively investigating, the recent draining of Silver Lake in Harriman State Park. The sudden
The Henry’s Fork Foundation (HFF) has become aware of, and is actively investigating, the recent drawdown of Silver Lake in Harriman State Park. The sudden
What is the current climate like in the Henry’s Fork Watershed? We have seen warmer temperatures and less water as a whole in water year
“It feels like July!” was a common sentiment shared around the watershed last month. Anglers enjoyed Brown Drakes on the Ranch three weeks earlier than
This time of year, one question is top of mind: what can we expect from the summer fishing season on the Henry’s Fork? Every spring
What is HFF’s Daily Water Report? After the severe drought of 2016, which resulted in what is still the poorest water quality we have recorded
PMDs were one of the hot topics on the Henry’s Fork in 2024, so here’s a few excerpts from the 10 Year Insect Report just
As most of you know, I started fishing the Harriman Ranch reach of the Henry’s Fork in 1977. I worked for Henry’s Fork Anglers from
To address angler concerns about decreased Henry’s Fork hatches, particularly at Last Chance and the upper Ranch, and holistically assess ecological function throughout the mainstem
