Fisheries
FAQ: The South Fork Initiative
If the Henry’s Fork Foundation (HFF) is doing work on the South Fork, doesn’t that take away from the Henry’s Fork? This is absolutely a…
Jamie Powell
June 22, 2023
Henry's Fork Foundation Blog
If the Henry's Fork Foundation (HFF) is doing work on the South Fork, doesn’t that take away from the Henry’s Fork? This is absolutely a...
Water Supply
Understanding SWE and Snowpack in Winter
What is Snow-Water Equivalent (SWE)? When it comes to how snow will benefit the river, looks can be deceiving. That’s why we report…
Jamie Powell
January 12, 2023
Aquatic Insects
The Shrine of the Green Drake
What do you say when your best friend calls and asks you to be part of a plan he hatched for his daughter’s sixteenth birthday? His gift to her, in abstract, was a fishing experience that would be forever connected to this milestone day. I was asked to be part of the expedition because my friend is a novice angler with no knowledge or experience fishing the Henry’s Fork River.
Henry's Fork Foundation
December 28, 2022
Research and Monitoring
When does the river freeze in winter and does ice affect trout?
This information was first published in an HFF blog by Christina Morrisett and Rob Van Kirk in 2015. When does the river freeze? As far…
Jamie Powell
October 27, 2022
Research and Monitoring
Changes to Lower River Management Benefit Upper River
Highlights: The lower river between St. Anthony and Parker is an important summer management lever for Island Park Reservoir. The Drought…
Christina Morrisett
October 6, 2022
Water Quality
How Drought Affects the Henry’s Fork: A unique case among western rivers
What is the state of the drought in the Henry’s Fork Watershed? As of early April, water year precipitation sat at 79% of average (21%…
Jamie Powell
May 3, 2022
Research and Monitoring
What Do Macroinvertebrates (Aquatic Insects) Tell Us About the Henry’s Fork?
Highlights Aquatic macroinvertebrates—insects and other creatures that live in the stream bottom—feed trout and are the basis of…
Rob Van Kirk
April 8, 2021
Fisheries
Winter Flow Shows Increasing Trend
Winter flow at Island Park Dam is the single biggest management factor determining trout recruitment in the Henry’s Fork downstream of…
Rob Van Kirk
December 30, 2020
Fisheries
The Paradox of Irrigation Efficiency
Diversion from the Henry’s Fork has decreased 30% over the past 40 years, yet consumptive use of water by crops has increased, there is…
Rob Van Kirk
December 10, 2018
Fisheries
Timing of snowmelt: Why is it Important and What Do We Know About it?
Timing of snowmelt runoff affects river ecology, trout behavior, fishing experience, and mid-summer streamflow in natural and regulated…
Rob Van Kirk
March 19, 2017
Fisheries
Winter on the Henry’s Fork: Flow, Temperature, and Trout
By Christina Morrisett and Rob Van Kirk During the Thanksgiving Holiday, we received a number of calls from concerned anglers about low…
Christina Morrisett
December 4, 2015