November 2019


Upcoming Events



December 3, 2019

What You Might Have Missed in HFF News

Intern Blog: Where Did Summer Go?

Water Year 2019: 3rd Year of High Reservoir Carryover

Single Digit Temperatures

Important Predictor of Snowmelt Timing in Watershed

Removal of the Ranch Bridge Piers Begins

Thank You to Wild West Construction

SF Aquatic Insect Study Results

Join the Henry's Fork Community on Social Media

There are a lot of exciting things happening in 
Henry's Fork country that you want to know about!

Learn more about what's going on, from field work to fundraising events, by following HFF on social media! 

The South Fork Initiative is on Social Media

Stay in the loop on flow changes and projects by following the South Fork Initiative on social media or by emailing Bryce.


Join HFF on a Hosted Trip!

Show your support for the Foundation while experiencing incredible fishing around the world! 

Featured Trip: 

Patagonia Coyahaiqua, Chile


Join the Henry’s Fork Foundation for the best dry fly fishing for Brown and Rainbow Trout in South America.

- 6 Days of Guided Fishing

- 7 Nights at Patagonia 

   House Lodge

- Only $4,350 per Person

- Only 4 Spots Left


Get Your HFF  Gear Today!

Get your HFF 35th Anniversary Throwback Trucker Hat today!

Show your support for the Foundation and look good doing it! 

Visit our online store to secure your HFF gear today!

Check Out HFF's Latest Newsletter

Winter 2019

What's New With Planned Giving?


Have You Gotten Your Free Gift?


Shop Amazon and Give Back to HFF 


When you shop at, Amazon donates back to us.  

Shop and support HFF at the same time!

HFF's Senior Scientist Writes for the Island Park Villager in 1986
This newspaper clipping is from the Island Park Villager, sometime in the summer of 1986. It features a fishing report written by HFF's own Senior Scientist, Rob Van Kirk. In the summer of '86, Rob was working behind the counter at Henry's Fork Anglers and, in this article, Rob shares some thoughts about fishing and remembers HFF founder, Bill Manlove. 

Here's an excerpt: 

"For those of you who did not know Bill, you have missed meeting one of the rare selfless people in the world. Bill was a gentle and kind man whose wit and humor always left us with a chuckle. He was a friend to all, but most of all he was a friend of the Henry's Fork of the Snake River...Please take a moment next time you are out on the river to realize what a special place we have here, and thank Bill Manlove for the time and heart he has given to insuring that your grandchildren will be able to fish to a twenty inch rainbow trout in the Henry's Fork just as you do now. Thank you, Bill, from the river and all of us who enjoy it."  

View the full article here.


What You Might Have Missed - Special Highlight

Fall/Winter Plan for Flows Below Island Park Dam
The Drought Management Planning Committee met in mid-October to set a fall/winter strategy for the reservoir. As part of that strategy, outflow from Island Park Dam was reduced in increments from 550 cfs at the beginning of October to a current outflow of ~310 cfs (125 cfs greater than indicated on the real-time gage) to fill the reservoir to its springtime target of 87% full (117,000 ac-ft) by December 1, and allowing outflow to equal inflow over the winter. Winter outflow is expected to be around 500-525 cfs.

Thanks to improved water supply for the upper Henry's Fork and crucial collaborations with water managers, fishing in the upper Henry's Fork and trout recruitment below Island Park Dam should be better in 2020 and 2021 than at any time since the late 1990s.

To stay up-to-date on water supply and flow changes throughout the winter, email to join his daily email list or follow us on social media.

New Real-time Sites Added to HFF Data Website

This fall, HFF staff and interns finished installing remote transmission equipment throughout the entire water quality monitoring network, with the exception of Warm River and Buffalo River sondes. There are now ten sondes with the capacity to send data on temperature, dissolved oxygen, turbidity and more to the HFF data website in real-time. 

In late October, due to record cold temperatures, HFF staff pulled many of our sondes out of the river so they wouldn't freeze in their PVC housings. Currently, only Island Park West, Island Park East, Buffalo, and Marysville remain in the river. Unfortunately, we don't anticipate temperatures will warm back up enough to put the removed sondes back in the river until next year. However, over the winter you can visit the HFF data website to review historic water quality data, like temperature and turbidity, for your favorite reaches to see how they fared this summer.

Stay tuned for additional capabilities, including real-time sondes transmitting from the South Fork, coming soon!

Explore the HFF data website here.  
Support Conservation During Your Holiday Shopping
There are two easy ways to support the Henry's Fork this holiday season. Did you know that when you shop at Amazon thru, Amazon donates back to the Henry's Fork Foundation? By shopping through Amazon Smile or HFF's online store, you are supporting crucial conservation work on the Henry's Fork.
Amazon Smile

When you shop at at Amazon through, the AmazonSmile Foundation will donate 0.5% of the purchase price of eligible products to the charitable organization of your choice. Every item that is available for purchase on is also available on AmazonSmile at the same price. You will see eligible products marked "Eligible for AmazonSmile donation" on their product detail pages. 

Simply logon to and designate Henrys Fork Foundation, Inc as your charity of choice! You can change your charity at any time by selecting Your Account from the navigation at the top of any page, and then select the option to Change your Charity. Remember to always visit anytime you shop at Amazon.
The HFF Shop

Shop a variety of HFF gear at our online store. Everything from fly-fishing shirts and t-shirts to hats, mugs, wine glasses and stickers. Take advantage of a few great sales while they last!

HFF 35th Anniversary mugs for $5!
Wine tumbler for $7 or 2 for $12!
Check for more sales in the coming weeks!
South Fork Initiative News: 2019 Restoration Projects
Last year, HFF's South Fork Initiative (SFI) assisted Idaho Dept. of Fish and Game, Rockin' T, U.S. Fish and Wildlife Service, and Wild Waters Restoration with a restoration project on Third Creek in the South Fork Watershed. The goal of the project was to restore natural stream function and improve habitat for native trout. Data collected by IDFG prior to the project showed August temperatures of about 71 degrees F and no fish present in that reach. The year after the project, August water temperatures were an amazing 61 degrees and 51 trout were present.

In an effort to continue to improve habitat for native species in the South Fork Watershed, the SFI and partners worked with local landowners to complete the design and assessment for three additional restoration projects along Rainey Creek, anticipated to begin in 2020. In total, the three projects would restore roughly one mile of river and riparian habitat. Thank you to the landowners and many partners who made this work possible.

To learn more about these projects or the South Fork Initiative, email