The sheriff’s office said in a statement that the victim’s vehicle was located near the town of Willard and the search was redirected to the area. Drones were also used and a Coast Guard helicopter group was called in to assist in the search.
Officials have not named the two dead, aged 37 and 59.
Weather conditions in the Cascade Mountains were cold the day before and during the search, with snow, freezing rain and temperatures dropping below freezing.
Rescuers also had to deal with high water levels in rivers and fallen trees.
Hundreds of sasquatch sightings have been reported in the Pacific Northwest of the United States and western Canada. Along with the Loch Ness Monster, this creature is one of the world’s most famous cryptids.
There have been so many alleged sightings that some communities have taken measures to protect the hairy mythical creature.
In Skamania County, sasquatch damage carries a fine, external $1,000 (£797) and one year in prison. The law, originally passed in 1969, was intended to protect both sasquatch and elk hunters with particularly large beards, according to the Skamania Chamber of Commerce.