Lamar River
Yellowstone cutthroat water inside the park. You need a Yellowstone fishing permit, and you should watch for bison and bears.
- 68 miRiver length
- 1Game fish
- 11Access points
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Lamar River
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About the Lamar
The Lamar River is excellent Yellowstone cutthroat water.
It is inside Yellowstone National Park, so you need a Yellowstone fishing permit. A Wyoming license does not cover it.
Bison and bears are common here. Keep your distance and stay aware. Small dry flies like a Parachute Adams work, and nymphing can be very effective too.
Lamar River near Tower Ranger Station YNP
Is the Lamar fishing today?
See today's top 10 rivers near you, free. Go Premium to score the Lamar, or any gage, on demand.
Nearby gages
- Soda Butte Cr at Park Bndry at Silver Gate15.9 mi away Not reporting USGS 06187915
- Yellowstone River at Yellowstone Lk Outlet YNP20.0 mi away Not reporting USGS 06186500
- West Rosebud Creek near Roscoe, MT36.7 mi away Not reporting USGS 06204050
- Gibbon River at Madison Jct, YNP37.8 mi away Not reporting USGS 06037100
- W Rosebud Cr at Emerald Lk Campground near Roscoe38.2 mi away Not reporting USGS 06204070
- Yellowstone River at Corwin Springs, MT39.8 mi away Not reporting USGS 06191500
- North Fork Shoshone River at Wapiti, WY40.9 mi away Not reporting USGS 06279940
- Rock Creek near Red Lodge, MT43.8 mi away Not reporting USGS 06209500
No gages that close. Try a wider radius.
See every gage on the map and today's top 10 rivers in the free appData from the U.S. Geological Survey. Recent readings are provisional and may be revised.
Fish you'll catch
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Hatching in November
What's on the water in the Upper Yellowstone watershed this month, and the fly to match.
All 11 hatches this year
Light bars show the season and dark bars the peak. The ringed month is this month.
Tips for fishing the Lamar
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Get the park permit
Fishing here requires a Yellowstone fishing permit.
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Watch for wildlife
Bison and bears are common along the Lamar. Give them plenty of room.
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Start with a Parachute Adams
Small dries are the local pick when fish are rising.
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Nymph when they are not up
Nymphing can be very effective here.
Every access point on the Lamar, in your pocket.
- 11 mapped access points, with parking and put-ins
- Today's Fishability score, so you fish the day that lines up
- 7-day flow and water-temp trends for every gauge on the river
Rivers near the Lamar
Lamar River FAQ
Do I need a special license to fish the Lamar River?
Yes. The Lamar is in Yellowstone National Park, so you need a Yellowstone fishing permit.
What fish live in the Lamar River?
Yellowstone cutthroat trout.
When is the best time to fly fish the Lamar River?
Summer and fall.
What flies work on the Lamar River?
Small dry flies like a Parachute Adams, plus nymphs.
Is the Lamar fishing well today?
This page shows the live gage. For a rating of how it is fishing today, open the river in the FlyFishFinder app.
