Debris Flow — Saguache, Colorado

2025-07-22 · near Crestone, Saguache, Colorado

Event narrative

Heavy rainfall over Medano Pass, in Great Sand Dunes National Park, triggered flash flooding and debris flows along Medano Pass Primitive Road. Sections of the road, culverts and other drainage infrastructure were washed out or covered in debris.

Wider weather episode

Heavy rainfall of 1-2 inches over Medano Pass, within Great Sand Dunes National Park, triggered a debris flow and excess runoff over Medano Pass Primitive Road.

View location on OpenStreetMap → (37.8535, -105.4462)

Source: NOAA Storm Events Database, event_id 1274560. Narrative written by the NWS forecast office that issued the report.