Trip brief · Lamar River
How to go fish the Lamar River
The months we list for the Lamar River are July, August, September. You are inside that window now, so this brief is written for August.
August
No USGS gauge is mapped to this river.
Flies to tie — August
Grasshopper#8-12
Pale Morning Dun#16-18
PMD Sparkle Dun
Caddis#14-18
Access
Lamar Valley Trailhead Pullout
44.910, -110.184parking
Soda Butte Creek Confluence
44.905, -110.120parking
Cache Creek Trailhead
44.901, -110.250parking
Rose Creek Confluence
44.920, -110.320
Regs — check current rules before you go
Yellowstone National Park fishing permit required (separate from Wyoming fishing license). Available at park entrance stations and visitor centers. Barbless hooks required. All Yellowstone cutthroat must be released. No bait fishing permitted anywhere in the park. Fishing season typically opens June 15 on the Lamar and most tributaries — check current NPS regulations for exact dates as they change annually. Park entrance fee applies.
Pack list
- A current state fishing licence
- Waders and boots you have already leak-tested
- Net, nippers, forceps
- Floatant and desiccant
- Tippet in the sizes the chart asks for
- Water, sun cover, polarised glasses
Generic gear. Anything specific to this water is above.
Full hatch chart, access map and live gauge on the Lamar River page →