Montana Fishing Reports ยท Lakes ยท Southwest Region
Clark Canyon Reservoir south of Dillon grows big rainbows and browns, and the Beaverhead flows out of it.
Looking for the latest Clark Canyon Reservoir river report? This page is updated by the AvidMax fly shop team with live flows, current conditions, hatches and the flies working now on the Clark Canyon Reservoir.
Water level
There is no public daily water level gauge for Clark Canyon Reservoir that we can show here. Check with the managing agency or a local shop for the latest.
Wind forecast
Clark Canyon Reservoir fishing report
Updated November 7, 2026.
Big trout cruise the shallows in the fall.
Leeches, scuds and chironomids along the drop-offs.
Stocking report
See the Montana Fish, Wildlife and Parks stocking information for the latest stocking at Clark Canyon Reservoir and other Montana waters.
Load your fly box
Before you head to Clark Canyon Reservoir, bring: Mini Leech #8-10, Kaufmann', s Scud #12-14, Zebra Midge #14-18, Woolly Bugger #6-8, Balanced Leech #10-12, Balanced Bou Leech #10-12, Slump Buster #6-8, Egg #12-14, Scud Bomb #12-16.
Flies working right now
The flies above that we have in stock right now.
Clark Canyon Reservoir lake details
| Access | Campgrounds and ramps around the reservoir off I-15. |
|---|---|
| Elevation | About 5,550 ft |
| Nearest town | Dillon, Montana |
| Best season | Spring and fall |
| Fish | Rainbows and browns |
| Regulations | Check Montana Fish, Wildlife and Parks regulations for current rules. A Montana fishing license is required for anglers 12 and older. |
| Leaders and tippet | 9 ft leaders, 3X to 4X tippet |
| Ice fishing | Ice fishing. |
| Camping | BOR campgrounds at the reservoir |
| Kids | Partly. |
| Good to know | Windy and open. |
Fishing by season
Winter
Ice.
Spring
Ice-off.
Summer
Callibaetis.
Fall
Big trout shallow.
How to get there
From Dillon, take I-15 south to Clark Canyon Reservoir.