Fishing Report
Big Rock Reservoir Fishing Report
Zortman, MT
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.
47.618010, -108.175714
Est. water temp
84.6°F
v1 estimate from air temperature — not a sensor reading
Species on record
No species on record yet for this lake.
Location
Big Rock Reservoir · 47.6180, -108.1757
Map data © OpenFreeMap, OpenMapTiles, OpenStreetMap contributors
Nearby
Other lakes nearby
FAQ
Common questions
What fish are in Big Rock Reservoir?
No fish species have been recorded for Big Rock Reservoir yet. Check the live conditions to plan a trip on the surrounding water.
When's the best time to fish Big Rock Reservoir?
No species are modeled for Big Rock Reservoir 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 Big Rock Reservoir to see the best window for current conditions.
Where is Big Rock Reservoir?
Big Rock Reservoir is near Zortman, MT, at 47.6180, -108.1757.
Plan your trip to Big Rock Reservoir
Get the hour-by-hour bite forecast and the best times to fish Big Rock Reservoir, scored against live National Weather Service weather for this exact spot — showing what every input contributed and how well the evidence supports it.