A federal proposal to list wolverines under the Endangered Species Act is nearing the end of its public comment period. The U.S. Fish and Wildlife Service, which in February proposed listing the small carnivore as a threatened species, will accept input until Dec. 2.

Wolverines are rare, seldom-seen creatures primarily found in Alaska and Canada. Though trapping and poisoning efforts likely eliminated them from the lower 48 states in the 20th century, between 250 and 300 have since re-established themselves throughout the Rockies and Pacific Northwest, the southern end of their range.

Though the bulk of wolverines in the lower 48 are found in the Rockies, they’ve been spotted in Oregon’s Wallowa Range near the Idaho border and in Washington’s North Cascades. They’ve been found as far south as California.