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3 encounters
2 July 2005 Orleans?, Humboldt County, California Class B #13362

Possible vocalizations near Bluff Creek

The witness and three children were in a tent at a campground when loud whooping calls began from multiple directions around them. The calls lasted about ten minutes and included click-like sounds at the start and a loud thud as the sources moved away. The witness stayed inside with a frightened child and did not see the callers, finding no tracks the next morning.

WhoopUnidentified soundFootsteps
March 2001 Twain Harte, Tuolumne County, California Class B #3072

BFRO Investigators detail activity around Twain Harte

Investigators found fresh broken trees, dozens of footprints and two nests where a trail crossed a road and staked out the spot. No creature was seen, but something large moving on two feet approached the stakeout before fleeing downhill through brush when a car passed. The sign was documented the next day with footprint and tree-break measurements and a body-length impression in one nest.

TracksTree breakStructure or nestFootstepsMovement only
June 2000 El Dorado County, California Class A #147

Sound reports from resident in South Lake Tahoe

The witness reports hearing loud mournful screams and wails almost nightly for three months at a home south of South Lake Tahoe, often described as paired calls that converge then stop. Recordings were made mostly from a bedroom window between late evening and morning. The witness with a companion also backpacked, made all-night forest forays, and camped with bait to locate the source, finding tracks and bed-like structures with torn branches, while noting dogs refused some areas and little wildlife was seen.

ScreamTracksStructure or nest