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William Gregory Loomis — Idaho fishing guide or outfitter.
Best Season
May – October
Best Season
The seasons when this guide most often runs trips.
Group Size
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Group Size
Typical number of guests on a trip with this guide.
Primary Waters
Idaho waters
Primary Waters
Regions where this guide primarily operates within.
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
How long this guide has been guiding professionally.
Profile details for William Gregory Loomis are being curated.
No services listed
Service offerings will appear here once approved.
No waters linked
This provider has not been associated with rivers or access sites yet.
Ketchum, ID
No photos yet
Gallery images will appear here once added.
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. Last updated August 16, 2026.