About this water
Williamson Reservoir is a reservoir in Montana. State records show it stocked 7 times between 2001 and 2008. The most-stocked species are rainbow trout and largemouth bass. 9,751 rainbow trout have gone in across 6 releases.
Stocking history
7 recorded stockings
| Date | Species | Number | Size | Hatchery |
|---|---|---|---|---|
| May 1, 2008 | Rainbow Trout · Eagle Lake | 2,520 | 5.6" | Creston National Fish Hatchery |
| Jun 14, 2007 | Rainbow Trout · Eagle Lake | 2,034 | 6.2" | Creston National Fish Hatchery |
| May 18, 2006 | Rainbow Trout · Eagle Lake | 2,000 | 5.7" | Creston National Fish Hatchery |
| Jun 8, 2005 | Rainbow Trout · Arlee | 1,000 | 5.7" | Creston National Fish Hatchery |
| Aug 10, 2004 | Largemouth Bass · Miles City | 3,500 | 2.0" | Miles City Fish Hatchery |
| Jul 2, 2002 | Rainbow Trout · Eagle Lake | 1,001 | 6.8" | Creston National Fish Hatchery |
| Jun 20, 2001 | Rainbow Trout · Eagle Lake | 1,196 | 7.2" | Creston National Fish Hatchery |
Stocking records for Williamson Reservoir published by Montana Fish, Wildlife & Parks. Stocking does not guarantee fish are present. Check current regulations and access before you go. See the full Montana stocking report.


