Montana /
Holter Lake
Reservoir in Montana · 4,048 acres · near Wolf Creek
Holter Lake has 2 boat ramps listed as public.
Past algal blooms
Harmful algal blooms reported on this water (state reports compiled by U.S. EPA): 2021, 2022, 2025 and 2026.
state reports compiled by U.S. EPA · checked October 18, 2026
Launches
- Holter Lake Boat Ramp · Boat ramp · near Wolf Creek
- Log Gulch Boat Ramp · Boat ramp · near Wolf Creek
Community
Where people who fish, boat and paddle Holter Lake talk about it. Lake associations, clubs and local groups will be added as we find them.