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Contact John Martin

John Martin Reservoir Project Office

Phone: 719.336.3476


Mailing address:

U.S. Army Corps of Engineers

29955 County Road 25.75

Hasty, CO 81044-9715



Welcome to John Martin Dam & Reservoir

Buzzards roost at John MartinJohn Martin Reservoir is a U.S. Army Corps of Engineer managed lake, however the recreation areas and campgrounds are managed by Colorado State Parks.

Federal Recreation Passports for these areas are not accepted.

The dinosaur track display is here!

The display was done by the Rocky Mountain Dinosaur Resource Center of Woodland Park, Colorado. They are one of the leading authorities on dinosaurs in the country. The display is spectacular. It has actual tracks from the track sites and a mural of the dinosaurs. It has an interactive element for you to enjoy. Come and visit a part of southeastern Colorado's history, 95.5 million years in the making.

Geocaching is permitted at John Martin Reservoir only with approval of the project manager.

Area Weather: Current weather conditions for Hasty, Colorado.

Colorado Fishing Regulations and Weekly Fishing Reports:  Colorado Division of Wildlife's fishing news, stocking, and fishing conditions reports run on a weekly basis from mid-April through Labor Day weekend. License applications and regulation brochures are also available at this site.

Protected Shoreline Birds:  John Martin Reservoir and other partners provide critical habitat for the Piping Plover and the Interior Least Tern.

Protect Your Waters and Stop Aquatic Hitchhikers!

zebra mussel in a circle with a line through it surrounded by these words: "Spread the message not the mussels"As Americans, we love to spend time on the water. Protecting these resources is an important part of our overall enjoyment. A concern we must all address is the spreading of harmful plants, animals and other organisms. These aquatic nuisance species can hitch a ride on our clothing, boats, and items used in the water. When we go to another lake or stream, the nuisance species can be released. And, if the conditions are right, these introduced species can become established and create drastic results.

So what can we do? By following a simple procedure each time we leave the water, we can help stop aquatic hitchhikers. For more information click here.