Colorado /
John Martin Reservoir
Reservoir in Colorado · 2,801 acres · near Caddoa, Las Animas
John Martin Reservoir has 3 boat ramps 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
Boating rules
- Gas motors allowed · all of John Martin Reservoir rule
From the boating rules map of Colorado Parks and Wildlife, read October 18, 2026. A map of rules is a guide: the regulation's text and the posted signs govern.
Launches
- John Martin Reservoir State Park East Boat Ramp · Boat ramp · near Caddoa
- John Martin Reservoir State Park West Boat Ramp · Boat ramp · near Caddoa
- John Martin SWA County Road 19 Ramp · Boat ramp · near Las Animas
Community
Where people who fish, boat and paddle John Martin Reservoir talk about it. Lake associations, clubs and local groups will be added as we find them.
Wikidata: Q19881006