Montana /
Martinsdale Reservoir
Reservoir in Montana · 913 acres · near Martinsdale
Martinsdale Reservoir has 1 boat ramp listed as public.
Past algal blooms
Harmful algal blooms reported on this water (state reports compiled by U.S. EPA): 2026.
state reports compiled by U.S. EPA · checked October 18, 2026
Launches
- Martinsdale Reservoir Fishing Access Site · Boat ramp · near Martinsdale
Community
Where people who fish, boat and paddle Martinsdale Reservoir talk about it. Lake associations, clubs and local groups will be added as we find them.