Erratic Rock State Natural Site

Erratic Rock State Natural Site
Erratic rock with Yamhill Valley in background
TypePublic, state
LocationYamhill County, OregonUSA
Nearest cityMcMinnville
Coordinates45°08′24″N 123°17′35″W / 45.1401157°N 123.2931613°W / 45.1401157; -123.2931613
Area4.4 acres (2 ha)
Operated byOregon Parks and Recreation Department
StatusDay use only

Erratic Rock State Natural Site is a state park in the Willamette Valley of Oregon, United States. Featuring a 40-short-ton (36 t) glacial erratic from the Missoula Floods, the small park sits atop a foothill of the Northern Oregon Coast Range in Yamhill County between Sheridan and McMinnville off Oregon Route 18. The day-use-only park is owned and maintained by the Oregon Parks and Recreation Department.