San Juan to Rio Grande

The Alliance region encompasses 1.4 million acres in the states of Colorado and New Mexico including the headwaters of the San Juan and Rio Grande rivers with numerous important tributary headwaters. Here, the Continental Divide rises from the arid southwestern desert to create a biologically diverse eco-tone between the Southern Rocky Mountains and the Colorado Plateau. The region is unique because it contains no major urban areas and is still a relatively intact network of private, federal, and tribal lands. The Alliance region is a remote, diverse, and wild piece of the greater San Juan to Rio Grande landscape in southwest Colorado and northern New Mexico.

The Alliance region is an extraordinary landscape by any measure. With elevations ranging from 6,000 to 13,000 feet, it is home to recently re-introduced lynx populations, big horn sheep, important populations of native Colorado River and Rio Grande Cutthroat trout, boreal toads, globally rare plant species and vegetative communities, and large populations of black bear, lion, turkey, grouse, deer, elk and many other species. The last known grizzly bear in Colorado was killed here in 1979 and speculation continues as to whether a remnant population still exists in the remote high country.

Click on the image below for a larger version of the map.