Montana /

Lake Elmo

Lake in Montana · 68 acres · near Billings

Lake Elmo has 1 boat ramp listed as public.

Past algal blooms

Harmful algal blooms reported on this water (state reports compiled by U.S. EPA): 2022, 2023 and 2026.

state reports compiled by U.S. EPA · checked October 18, 2026

Motors: No motors (as the agency lists it for the launch here; check the posted rules before you go)

Depth contours in feet from Montana FWP; deepest point about 16 ft. Lake levels and bottoms change; not for navigation.

Launches