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© 2026 Barbless.co. Flow and gauge data from USGS; weather from Open-Meteo. · v2026.10.18.2

  1. Idaho
  2. Providers
  3. Eric Thomas Grigg

Updated August 16, 2026

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Eric Thomas Grigg

Eric Thomas Grigg

Eric Thomas Grigg, Idaho fishing guide or outfitter.

GuideUnclaimedOfficial License Found

Overview

Best Season

May – October

Best Season

May – October

Best Season

The seasons when this guide most often runs trips.

Group Size

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Group Size

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Group Size

Typical number of guests on a trip with this guide.

Primary Waters

Idaho waters

Primary Waters

Idaho waters

Primary Waters

Regions where this guide primarily operates within.

Skill Level

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Skill Level

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Skill Level

The angler XP level best suited for trips with this guide.

Guiding Experience

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Guiding Experience

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Guiding Experience

How long this guide has been guiding professionally.

About Eric Thomas Grigg

Eric Thomas Grigg grew up in Soda Springs, Idaho, where he developed a passion for fly-fishing from an early age under his mother's instruction. He earned a degree in Biotechnology from Montana State University while maintaining his dedication to fishing, which eventually led him to join Three Rivers Ranch as a guide in 2003. Grigg has extensive experience on southeast Idaho's premier waters, particularly the South Fork of the Snake River where he spent his formative years fishing, and he also guides on the lower Henry's Fork. Based in Ashton, Idaho, he values the collaborative culture at Three Rivers Ranch and frequently fishes during his free time and off-season months.

Common questions

What experience level is this for?
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When is the best season?
May – October

Services

No services listed

Service offerings will appear here once approved.

Waters

No waters linked

This provider has not been associated with rivers or access sites yet.

Outfitter Association

Three Rivers Ranch INC #1

Ashton, ID

Photos

No photos yet

Gallery images will appear here once added.

License

An official Idaho outfitter/guide license is on file for this provider.

Sourced from official Idaho Board of Outfitters & Guides license records. This listing has not yet been claimed by the provider.

On this page

OverviewServicesWatersOutfitter AssociationPhotos

Contact

No public contact details are on file for this provider yet.

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Guide

A licensed fishing guide who offers guided trips on Idaho rivers and lakes.

Unclaimed

This listing has not yet been claimed by the provider.

Official License Found

A matching Idaho outfitter or guide license was found in official state records.