Each spring, from approximately March 15 to May 15, the Bureau of Land Management (BLM) Gunnison Field Office, in coordination with Gunnison County and the U.S. Forest Service, implements seasonal road and trail closures across key areas of the Gunnison Basin. These temporary closures play a critical role in protecting the Gunnison sage-grouse during one of the most sensitive times of their life cycle—the breeding and nesting season. During this period, sage-grouse gather on traditional mating grounds, known as leks, where even small disturbances from vehicles, bikes, or foot traffic can interrupt breeding behaviors or cause birds to abandon nesting sites altogether. By limiting access in important habitats such as Hartman Rocks, Signal Peak, and the Almont Triangle, these closures help ensure successful mating and nesting, which is essential to the survival of this federally listed threatened species.

These protections also reduce stress on the birds, often referred to as “heart-attack birds” due to their tendency to flush suddenly when disturbed—expending valuable energy needed for reproduction. At the same time, the closures serve a dual purpose by protecting roads and trails during the spring “mud season,” when thawing conditions make them highly vulnerable to damage such as rutting and erosion. By temporarily restricting access, land managers are able to preserve both critical wildlife habitat and the long-term integrity of our recreation infrastructure. This collaborative effort reflects a thoughtful balance between conservation and access, helping to ensure that both the Gunnison sage-grouse and the landscapes we all enjoy remain healthy for generations to come.

 For a detailed LIST of closures, click here.

For a detailed MAP of closures, click here.