The pre-season advanced lottery, open February 15 through March 1, that allocates about 75 percent of Enchantments overnight permits.
The Forest Service's own Enchantments page says demand for overnight permits far exceeds supply: about 75 percent are allocated through the pre-season advanced lottery held February 15 through March 1, where "typically less than 10% of applicants are successful", and remaining permits are then available first come, first served on recreation.gov. We watch both and alert when they open.
Updated , checked by hand against the target's own page.
Watched from fs.usda.gov, the target's own public page — not a reservation system we poll.