Grassy Hills Reservoir

Grassy Hills Reservoir is a reservoir in Idaho, near Owyhee County.

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Grassy Hills Reservoir is a reservoir in Owyhee County, Idaho.

Use the shape you can see at Grassy Hills Reservoir: check the best cover, the first drop, and one open-water line before moving.

Explore nearby waters, including local Featured destinations. Check each page for access and fishing restrictions.

Distances are straight-line estimates between mapped water locations.