Firehole River
WY
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River
About Firehole River
The Firehole River is a dynamic 30-mile hybrid freestone and spring creek within Yellowstone National Park, renowned for its wild brook, brown, and rainbow trout populations. This geyser-heated system offers a diverse fly fishing experience with fast pocket water, riffles, and challenging slick water sections. Anglers can anticipate excellent dry fly opportunities during Caddis and Golden Stone hatches, with warm spring waters influencing water temperatures for early and late season fishing. Accessible via the Grand Loop Road, with some areas requiring a short hike, the Firehole also boasts tributaries like Sentinel Creek and the Little Firehole River that can hold larger trout seeking cooler waters.
Firehole River Hatch Chart
Quick Actions
Regulations
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Seasonal Closures: This water has seasonal closures. Check local regulations for specific dates.
Trip Planning
Best fishing typically occurs during spring and fall. Check water conditions before heading out.
See what insects are emerging on Firehole River's hatch forecast — including active hatches, water temperatures, and which patterns to have in your box this month.
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Hatch forecasts, river gages, fly scanning, and your journal — built for on-stream use. Be prepared before you get to the water. Free on the App Store and Google Play.
Conditions Report
Read tips and insights about recent conditions for Firehole River — gathered from on line sources.
Read the Conditions ReportAccess
Seasons
Terrain
Water
Fish Species
Rainbow Trout
Brown Trout
Brook Trout
Cutthroat
Regulations
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Seasonal Closures: This water has seasonal closures. Check local regulations for specific dates.
Fishing Styles
Methods
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Wade Friendly
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Float Friendly
Land Ownership
National Park