Toole County · reservoir · 1 acres · seasonal
Cook Reservoir
1 stocking on record · Montana FWP
Cook Reservoir is a reservoir in Toole County, Montana, stocked with Rainbow Trout — most recently on May 27, 2026. FishableWaters aggregates every stocking record for this water from Montana FWP; the latest schedule and today's bite windows are above.
Best days this week
Days near a new or full moon tend to fish best.
Today's bite windows
Conditions, next 3 days
Today
Overcast
85°
60°
13 mph
0%
Sat
Overcast
96°
64°
21 mph
1%
Sun
Clear
79°
52°
21 mph
1%
↗ pressure risingPost-front rising pressure can slow things down for a day.
Stocking ledger
| — 2026 — | ||||
| May 27 | Rainbow Trout | 1,014 | 4.55" | |
Angler reports
What's biting
No reports yet — be the first
Best bite times
No reports yet
Field notes
No notes yet
Nearby waters
- Duce Creek1.3 mi
- Trail Creek1.3 mi
- Christian Reservoir3.1 mi
- Brown Reservoir3.7 mi
- Fred and George Creek3.6 mi
- Prichard Creek3.7 mi
- Fitzpatrick Lake6.2 mi
- Belle Creek5.7 mi
Seasons, limits, and rules are the state's call — check the official MT regulations and buy your license before you go. We link the source; we never restate the rules.
Cook Reservoir fishing — FAQ
What fish are stocked in Cook Reservoir?+
Cook Reservoir is stocked with Rainbow Trout in Toole County, Montana, most recently on May 27, 2026 by Montana FWP. The full stocking ledger is on this page.
Do I need a license to fish Cook Reservoir?+
Yes — Montana requires a fishing license. Buy one from the state and check current seasons and limits before you go; both are linked on this page.
Where is Cook Reservoir?+
Cook Reservoir is a reservoir in Toole County, Montana. Driving directions and an interactive topo map are on this page.
Data: Montana FWP · updated May 27, 2026 · checked daily · we publish what agencies publish, nothing else.