Fishing Report
Rock Island Lake Fishing Report
Cooke City, MT
Free — no account, no app
Modeled from National Weather Service data, plus solunar and sun/moon times computed in-house. This is a computed report, not an eyewitness catch report.
45.015472, -109.809737
Est. water temp
49°F
v1 estimate from air temperature — not a sensor reading
Max depth
100 ft
Deepest surveyed contour on record
Depth contours: Montana DNR survey
Notes from anglers
Imported from GNIS. Nearest town: Cooke City (Park County, MT).
Species on record
No species on record yet for this lake.
Suggest a species for this lake →Location
Rock Island Lake · 45.0155, -109.8097
Map data © OpenFreeMap, OpenMapTiles, OpenStreetMap contributors
Not for navigation
These depth contours are for deciding where to fish, not for running a boat. No depth map we show — whatever agency surveyed it — is a nautical chart, and none of them will show you a shoal. Do not navigate by this map.
Depth contours: Montana DNR survey
Nearby
Other lakes nearby
FAQ
Common questions
What fish are in Rock Island Lake?
No fish species have been recorded for Rock Island Lake yet. Check the live conditions to plan a trip on the surrounding water.
When's the best time to fish Rock Island Lake?
No species are modeled for Rock Island Lake yet, so there's no species-specific feeding window to name. The score still gives the light window 25% of its total, an input Bitespan grades "Well supported". Check today's bite forecast for Rock Island Lake to see the best window for current conditions.
Where is Rock Island Lake?
Rock Island Lake is near Cooke City, MT, at 45.0155, -109.8097.
Plan your trip to Rock Island Lake
Get the hour-by-hour bite forecast and the best times to fish Rock Island Lake, scored against live National Weather Service weather for this exact spot — showing what every input contributed and how well the evidence supports it.