FAQ: The South Fork Initiative

Fish Icon
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...
Home » Blog » FAQ: The South Fork Initiative
River with mountains in the background

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 logical assumption and concern than many have shared with us. If you think about HFF’s available time and resources as a pie, starting work on the South Fork must take a piece out of that pie, right? In this case, the South Fork Initiative (SFI) program was launched and is funded entirely by South Fork-only donors and grant sources, ensuring that all Henry’s Fork funds and effort stayed (and even grew) on the Henry’s Fork.

Here’s the short version:
  • NO funding or resources were taken away from the Henry’s Fork for the South Fork Initiative (separate South Fork-only donors).
  • Since the start of the SFI in 2018, more resources ($) and capacity have been directed towards the Henry’s Fork than EVER before (12 new and 35 total HF projects happening now).
  • The SFI has brought in new funds and relationships for the Henry’s Fork.
  • Water management decisions are made on a regional scale, and Palisades Reservoir is the center of the Upper Snake storage system.
  • Having a stake in the South Fork opens up the opportunity to be a part of larger-scale water discussions.
  • Keeping the South Fork healthy helps to avoid added fishing pressure on the Henry’s Fork.

How does that work?

When South Fork outfitters and citizens asked the Henry’s Fork Foundation to help on the South Fork in 2018, they raised all of the funds to do the work. No funding or resources are taken away from the Henry’s Fork. Instead, South Fork-specific donors and grants funded the work. In fact, that program has opened up new grant and funding sources that were previously unavailable to the Henry’s Fork, and are now benefiting the fishery there. Since the start of the South Fork Initiative in 2018, more resources, funds, and capacity have been dedicated to the Henry’s Fork than ever before. There are 12 new Henry’s Fork projects (since 2018) and over 35 total projects happening on the Henry’s Fork, currently. Simply in terms of funds and amount of work, the South Fork Initiative has been a net positive for the Henry’s Fork.

In terms of impact for the Henry’s Fork, the South Fork Initiative has also brought new relationships and increased influence in the water management world for the Henry’s Fork. Water management decisions are made on a regional scale, and Palisades Reservoir is the center of our water storage system. In fact, the Henry’s Fork and Island Park Reservoir appear quite small in comparison. But, being a part of larger-scale water discussions and having even some level of involvement on the South Fork, give us greater reach and influence to advocate for the Henry’s Fork.

Essentially, rather than the South Fork taking away a piece of the Henry’s Fork pie, it has simply made the Henry’s Fork pie bigger. HFF puts a great deal of time and careful consideration into any and every project or program, and a program’s benefit to the Henry’s Fork is prioritized above all else.

So what are you doing about the tough conditions on the Ranch last year?

As anglers know, 2022 produced very tough conditions on the Ranch, from turbidity (from sediment) to trout and insect populations. Many of HFF’s most crucial programs ongoing right now focus on the crux of the Ranch and upper Henry’s Fork fishery via Island Park Reservoir and its effects downstream. Some of these include, Precision Water Management Program (keeping water in Island Park Reservoir which increases trout populations and improves water quality), Farms & Fish Program (water conservation), spring freshets (clear sediment from the Ranch), and a new Harriman Ranch water temperature monitoring project.

We know the effects of drought have had a negative impact on the fishing experience in the Ranch. We have programs in place that not only help us better understand these natural systems, but improve conditions locally. Our work has increased the number of trout below Island Park Dam by 20% over and above what it would have been otherwise, and insect habitat has improved dramatically since the 1992 sediment event. We are also working on a plan to look at more potential actions to reduce the amount of sediment that comes out of Island Park Reservoir from the west end. More information on each of these can be found in the links throughout this text, but if you have specific questions, please contact us.

Facebook
LinkedIn
Pinterest

Recent Posts

Person holding a rainbow trout.
Research and Monitoring
Rob Van Kirk

Water Year 2025: Everything you wanted to know and a lot more!

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 and analysis activities for the year. Water and irrigation year 2025 was a very active year for the team, given one of the hottest and driest summers on record, our 11th year of aquatic invertebrate sampling, and the 20th year of monitoring the rainbow trout spawning run in the Buffalo

Read More »
Water Supply
Otto Lang

Monitoring the Upper Snake Snowpack: Updates from the Field

Hello! My name is Otto Lang, and I am a postdoctoral researcher with Boise State University and the Henry’s Fork Foundation. I’m working alongside Rob Van Kirk at the HFF, Lejo Flores, Professor in Geosciences at Boise State University, and Sarah Newcomb at Trout Unlimited. Together, we are in the midst of a two-year WaterSMART project funded by the U.S. Bureau of Reclamation to improve predictions of snow water supply across the Upper Snake River

Read More »
2 people in gear taking water samples
Research and Monitoring
Rob Van Kirk

Henry’s Fork Aquatic Invertebrate Trends, 2015-2025

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, we implemented a statistically rigorous, quantitative study of aquatic invertebrates in 2015. This followed implementation of a watershed-wide water-quality monitoring program in 2014 and prompted subsequent expansion of stream gaging. After our 11th year of sampling in 2025, we had a set of 56 independent observations of macroinvertebrates collected at

Read More »
Aquatic Insects
Rob Van Kirk

Fish of the Month: Year 11

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 11th year of catching a fish in my home waters in each month of the year. To spare you the math, that’s 132 consecutive months of catching a wild trout or whitefish (and in some years I’ve fair-caught suckers and shiners, too) within a three-hour drive of my home in

Read More »