[dropcap]T[/dropcap]hanks to a collaboration between the Department of Game and Fish, Colorado Division of Parks and Wildlife, Vermejo Park Ranch, and the U.S. Fish and Wildlife Service, the Rio Grande cutthroat trout will have protected habitat long into the future.

A Candidate Conservation Agreement with Assurances (CCAA) for Vermejo Park Ranch was recently approved by the U.S. Fish and Wildlife Service that will help conserve and restore the New Mexico State Fish and other native fish in th in the Costilla watershed.

Colorful Rio Grand cutthroat trout caught in Castilla Watershed - New Mexico.

Colorful Rio Grande cutthroat trout caught in Castilla Basin – New Mexico.


The Department works closely with private landowners, states, and federal agencies to recover sensitive species and their habitat. By proactively agreeing to conservation activities within a project area, a CCAA can protect existing uses such as agriculture, recreation, or commercial activities if a covered species becomes federally protected.

“We have been working together for 10 years to make sure we can address the needs of the Rio Grande cutthroat trout, and other native fish living in the watershed, while ensuring private landowners continue to be able to manage their own lands. This agreement does that,” said Department Fisheries Chief Mike Sloane.

The Rio Grande cutthroat is easy to recognize with its red throat slashes, rosy belly, and spotted sides. Anglers have long enjoyed the colorful fish, and have contributed millions of dollars to conservation and habitat restoration for the species through the purchase of fishing licenses and fishing equipment. At Vermejo Park Ranch, non-native trout were removed and Rio Grande cutthroat were stocked. Non-native trout will continue to be removed from the waterways until the restoration is complete. Because of the CCAA the Costilla basin is set to provide important habitat for New Mexico’s native trout for many years to come.

“The CCAA is a no brainer for us,” said Carter Kruse, Aquatic Resource Coordinator for Turner Enterprises. “If the Rio Grande cutthroat trout are listed under the Endangered Species Act, it provides us the protection and flexibility to design the activities on the ranch, and as private landowners, to manage the property to the best of our abilities for conservation and for economic sustainability. We hope we can be an example for other private landowners that you can still do your ranching activities and participate in conservation. We’ve done it, it works, here’s how.”

Although not listed as endangered, the Rio Grande cutthroat trout is a candidate species for federal protection under the Endangered Species Act. The Department is working hard to keep the fish off the endangered species list by increasing the subspecies range and the number of populations through habitat restoration and stocking. Currently, Rio Grande cutthroat are found in about 10 percent of its historic habitat, which encompassed the Rio Grande, Pecos River, and Canadian River basins in New Mexico and Colorado. The species faces many challenges including non-native fish, fragmented populations, drought, and poor habitat.


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