Iowa /

Minnewashta Lake

Lake in Iowa · 126 acres · near Arnolds Park

Minnewashta Lake has 1 boat ramp listed as public.

Zebra mussels

Zebra mussels (latest report 2013) reported in this water (USGS Nonindigenous Aquatic Species database). Clean, drain and dry your boat, trailer and gear before you leave, and do not move water, plants or live bait to another water.

USGS Nonindigenous Aquatic Species database · checked October 18, 2026

Depth contours in feet from Iowa DNR; deepest point about 14 ft. Lake levels and bottoms change; not for navigation.

Launches