Fisheries
Why aren’t I seeing any big fish in the Ranch? Is it because of the bugs?
Why aren’t anglers seeing big fish in the Ranch? Are hatches changing?
Jamie Powell
September 12, 2024
Henry's Fork Foundation Blog
Why aren't anglers seeing big fish in the Ranch? Are hatches changing?
Water Quality
Last Chance Wastewater Treatment Plant Getting Ready for Upgrades
Fremont County operates a wastewater treatment facility (WWTP) on Forest Service ground in Last Chance. With the continued growth of…
Jamie Powell
September 11, 2024
Water Quality
Watershed Council Tours Island Park Reservoir
Thank you to all of those who attended this year’s annual Henry’s Fork Watershed Council tour! Participants toured the Last Chance…
Jamie Powell
September 11, 2024
Water Quality
(2ND LOOK) 2023 Henry’s Fork Foundation Report
As summer transitions to fall, we’re reflecting back on where we were as of the start of the year. Originally published January 23, 2024….
Jamie Powell
September 3, 2024
Research and Monitoring
FAQ: Is Outflow from Island Park Dam Higher Than it Used to Be?
Summertime outflow from Island Park Reservoir is lower (not higher) than it was in the “glory days”.
Jamie Powell
September 1, 2024
Fishing
FAQ: Is it Too Warm to Fish? Water Temperatures on the Henry’s Fork
Do water temperatures on the Henry’s Fork get too hot to fish and should there be hoot owl closures?
Jamie Powell
August 31, 2024
Water Quality
State of the Henry’s Fork 2023: Water Year Technical Report
UPDATE: With only one month left in the 2024 water year, let’s take a look back at Water Year 2023, and get a preview of the types of…
Rob Van Kirk
August 30, 2024
Fisheries
HFF’s Membership Meeting Videos Live (VIDEO)
This year, the Henry’s Fork Foundation’s (HFF) annual membership meeting was hosted on June 5th in Island Park. Dr. Rob Van Kirk gave an…
Jamie Powell
August 26, 2024
Fishing
HFF Submits Comments on Henry’s Lake Flats Development
A continuation of the discussion around a proposed “airpark” and new Marriott in Henry’s Lake Flats.
Jamie Powell
August 24, 2024
FAQ: River Access and Recreation Regulations
Information about invasive species stickers, watercraft registration, outfitter licenses, and river recreation regulation.
Christina Morrisett
August 19, 2024
Water Quality
Organic Matter Causing Major Turbidity and Low Oxygen in Island Park
UPDATE: After 10 years of studying Island Park Reservoir, we thought we had seen just about everything possible, but the current event is…
Jamie Powell
August 2, 2024
Water Supply
Mick & Mike Talk Henry’s Fork in the 1980s (VIDEO)
Mick Mickelson and Mike Lawson talk about the 1980s and what prompted the formation of the Henry’s Fork Foundation in 1984.
Jamie Powell
June 26, 2024
Fishing
How Does HFF Calculate Hatch Timing?
Rather than a typical “hatch chart”, HFF’s hatch timing calculations are based on accumulation of thermal units in the aquatic ecosystem….
Jamie Powell
June 20, 2024
Water Quality
Rain Vs. Snow [Part 5]
Increasing spring and summer air temperatures have a doubly negative affect on water quality.
Rob Van Kirk
March 8, 2024
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
Water Supply
Rain Vs. Snow [Part 3]
Water use + management in the Henry’s Fork watershed have much larger effects on streamflow than any changes due to precipitation type.
Rob Van Kirk
March 6, 2024
Water Supply
HFF Discovers Island Park Reservoir is the Center of the Universe
In recent years, HFF has expanded its work beyond the Caldera. Why? All roads lead to Island Park Reservoir, the center of the universe.
Christina Morrisett
March 6, 2024
Water Supply
Rain Vs. Snow [Part 2]
When snow makes up a larger fraction of total precipitation, prediction of irrigation-season water supply is more precise
Rob Van Kirk
March 5, 2024
Water Supply
Rain Vs. Snow [Part 1]
All precipitation is not created equal. Water supply is lower when a greater percentage of our precipitation falls as rain instead of snow.
Rob Van Kirk
March 4, 2024
Research and Monitoring
Measuring streamflow on the Henry’s Fork: Why, Where, and How
In 2018, the Henry’s Fork Foundation began its Precision Management program. The motto for this program is “every drop, every day,…
Christina Morrisett
December 7, 2023
Water Supply
New Research by HFF Scientists and Interns
Summary. New research by HFF scientists and interns demonstrates how adopting center-pivot sprinkler irrigation over the last 40 years…
Christina Morrisett
September 20, 2023
Water Quality
Macrophyte FAQ
Throughout August-September, there tends to be a lot of rooted aquatic plant (macrophyte) growth. These plants grow rapidly as they…
Jasper Davis
August 31, 2023
Water Quality
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
Water Quality
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