Sasquatch and the U.S. Government. Reports of dead Sasquatch in the aftermath of Mt. St. Helens eruption, for example, the following story:
Cowlitz County, Washington - 1980 May - at one of Ray Crowe's Western Bigfoot Meetings, someone brought up the topic of corpses of sasquatch after the May 18, 1980 eruption of Mt. St. Helens in Washington State. The witness heard of two sasquatch the Army Corps of Engineers had taken out of the volcanic devistation...two months after the inital blast.There's much more on the Phantoms and Monsters blog, including links and updates to these stories.
Terry Reams heard of a dredging operation of the Cowlitz River and two bodies were found in the sand (probably same case?). A chopper flew them off.
Joe Beelart offered that the crane doing the dredging was from the Manatowaka Company and that the bodies were found two weeks after the Mt. St. Helen's blast of May 18, 1980. He suggested that somebody might want to track down the company and find out who was working the shift that the bodies had been found on.
Speaking of government conspiracies and the capture/study of Bigfoot, or at least awareness of their existence and a cover-up, there's the Livermore story. Loren Coleman has blogged about this, as well as the now departed from the blog-0-sphere Blogsquatcher:
Bigfoot Captured on CBS? as posted by Craig Woolheater in 2007, also see Invisible Bigfoot?