Fishing Report
Upper Slim and Fatty Reservoir Fishing Report
Harper, OR
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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.
43.562480, -117.615008
Est. water temp
83.9°F
v1 estimate from air temperature — not a sensor reading
Notes from anglers
Imported from GNIS. Nearest town: Harper (Malheur County, OR).
Species on record
No species on record yet for this lake.
Suggest a species for this lake →Location
Upper Slim and Fatty Reservoir · 43.5625, -117.6150
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Nearby
Other lakes nearby
FAQ
Common questions
What fish are in Upper Slim and Fatty Reservoir?
No fish species have been recorded for Upper Slim and Fatty Reservoir yet. Check the live conditions to plan a trip on the surrounding water.
When's the best time to fish Upper Slim and Fatty Reservoir?
No species are modeled for Upper Slim and Fatty 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 Upper Slim and Fatty Reservoir to see the best window for current conditions.
Where is Upper Slim and Fatty Reservoir?
Upper Slim and Fatty Reservoir is near Harper, OR, at 43.5625, -117.6150.
Plan your trip to Upper Slim and Fatty Reservoir
Get the hour-by-hour bite forecast and the best times to fish Upper Slim and Fatty Reservoir, scored against live National Weather Service weather for this exact spot — showing what every input contributed and how well the evidence supports it.