Hazard Warning: Hazard information may be user-submitted and unverified. Conditions change frequently. Always scout rapids and obstacles yourself.

Hazard CA Class IV

Nightmare Island

Merced - 5) Redbud to Briceburg (CA)

Monitor this Rapid

Gauge Conditions

Merced River a Pohono Bridge near Yosemite CA Upstream Primary

Runnable: 400.0 – 8,000.0 CFS

Data from American Whitewater & USGS

CDEC Flow Data California

MERCED RIVER POH Primary

Elevation: 3,862 ft

MERCED RIVER HIB Primary

Elevation: 4,016 ft

MERCED RIVER MLK Primary

Elevation: 7,300 ft

Data from California Data Exchange Center (CDEC)

Photo

Photo courtesy of American Whitewater

Description

The river splits around the island, with the left channel as a sneak route, and the right channel with two Class IV drops. The two drops are formed by jagged rocks that can have some pin/carnage potenial at lower flows. At higher flows both channels have large holes that are difficult to avoid.