Montana /
Placid Lake
Lake in Montana · 1,366 acres · near Seeley Lake
Placid Lake has 1 boat ramp listed as public.
Past algal blooms
Harmful algal blooms reported on this water (state reports compiled by U.S. EPA): 2020 and 2021.
state reports compiled by U.S. EPA · checked October 18, 2026
Depth contours in feet from Montana FWP; deepest point about 93 ft. Lake levels and bottoms change; not for navigation.
Launches
- Placid Lake State Park Boat Ramp · Boat ramp · near Seeley Lake
Community
Where people who fish, boat and paddle Placid Lake talk about it. Lake associations, clubs and local groups will be added as we find them.