Fishing in Great Sand Dunes National Park

Great Sand Dunes National Park and Preserve sits in the San Luis Valley of southern Colorado, where the tallest dunes in North America rise against the Sangre de Cristo Mountains.

The fishing here is a backcountry proposition — small mountain streams and high alpine lakes tucked into the preserve's peaks, not roadside water. Anglers who come for the dunes and stay for the fishing are working for it.

The two drainages that anchor fishing inside the park are Medano Creek and Sand Creek. These are the waters where Colorado state fishing regulations apply, and a valid Colorado fishing license is what you need — no separate park permit on top of that.

The park prohibits fishing by any method other than hook and line with the rod or line closely attended, and bans live or dead minnows and other bait fish as well as amphibians for freshwater fishing.

Check with the park directly for current rules before you go. Rio Grande cutthroat trout are the native species here.

Historically they ranged across the upper Rio Grande Basin into southern Colorado and northern New Mexico; today they hold on in roughly 15% of that original range, concentrated in headwater streams like these.

Catching one in Sand Creek — small fish finning in clear mountain pools above 11,000 feet — carries a different weight than pulling a stocked rainbow from a reservoir.

Upper and Lower Sand Creek Lakes lie within the preserve and draw backpackers willing to gain serious elevation. The trail involves steep switchbacks and the lakes sit well above treeline. This is not a day-trip fishery for most visitors.

The water is real, the trout are wild, and the country is hard. That combination is either exactly what you're after or it isn't.