Water Supply
Rain Vs. Snow [Part 4]
Fish are affected by life-history specific streamflow and habitat characteristics that are not simple, direct functions of water supply.
Rob Van Kirk
March 7, 2024
Fisheries
Fisheries
FAQ: Water Temperatures on the Henry’s Fork
The Henry’s Fork is unique in that summer water temperatures between Island Park Dam and Pinehaven are affected more by air temperatures…
Jasper Davis
July 12, 2023
Fisheries
FAQ: IRRIGATION
Why do you sometimes see fields being irrigated (watered) while it is raining? Isn’t this a waste of valuable water? This question is…
Jasper Davis
July 10, 2023
South Fork
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
Fishing
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
Fisheries
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
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