Please note: Colorado Parks and Wildlife are removing bag and possession limits July 22 through August 25, 2020 in waters within Great Sand Dunes National Park and Preserve (Upper Sand Creek Lake, Lower Sand Creek Lake, Little Sand Creek Lakes, and Sand Creek). Visitors may keep all the fish they can catch with standard fishing gear. In late August, the drainage will be treated to remove all fish. After non-native species are removed, Rio Grande cutthroat trout will be stocked in the drainage in fall 2020.
Rio Grande Cutthroat Trout are catch and release only; they are on the candidate list for threatened/endangered species at the federal level. The US Fish and Wildlife Service determined in 2009 that while there is sufficient evidence to support federal listing, the listing is currently precluded due to higher priorities. These trout are currently on the Colorado state list as a Species of Special Concern.
Fishing Guide to Great Sand Dunes and Vicinity (.pdf, 211 kb)
The Rio Grande sucker (Catostomus plebeius) is an endangered species in Colorado. These small fish have been reintroduced to forested sections of Medano Creek, and their population is still being monitored.
Fathead minnows (Pimephales promelas) live in Big Spring Creek and Indian Spring, west of the main dunefield.
Last updated: August 4, 2020