About
Big Bend National Park — June 12, 1944. From the USGS Rio Grande Survey of 1899 through Robert Hill's expedition mapping, the Big Bend reach has drawn explorers to its canyon complexes cut deep into Brewster County limestone. This 118-mile Wild & Scenic corridor through Big Bend National Park averages 420 CFS but runs best between 300–2000 CFS on gauge 08374550. Santa Elena Canyon drops through 20 miles of Class II–IV water between walls that rise 1,500 feet — the park's most technical and iconic stretch. Mariscal Canyon covers 10 miles of Class II–III in the most remote section of the designation. Boquillas Canyon spreads over 30 miles of Class I–II desert float, wide and meandering compared to the upstream gorges. The 2023 Desert Expedition Revival has renewed interest in Big Bend paddling among river runners willing to handle the logistics of a true wilderness corridor.
River conditions are community-verified. CFS ranges, difficulty ratings, and access points may not reflect every flow level or seasonal change. Always check current conditions, scout unfamiliar rapids, and paddle within your skill level.