Project Blue Book Case #9049. On August 15, 1964, a bright object was observed over Yosemite National Park — one of America's most iconic landscapes, with granite cliffs, waterfalls, and giant sequoias. Yosemite's high Sierra setting at 4,000-8,000 feet provided clear mountain air and minimal light pollution. The park's remote wilderness was far from any military installation. The case was classified "Unknown."
