Monster Rock
From Wikipedia, the free encyclopedia
LocationOn Ephrata Erratic Fan near Soap Lake, Washington
Geologyglacial erratic
Monster Rock | |
|---|---|
  Monster Rock | |
| Coordinates: 47°19′39″N 119°28′05″W / 47.3275°N 119.4680°W | |
| Location | On Ephrata Erratic Fan near Soap Lake, Washington |
| Geology | glacial erratic |
Monster Rock is a glacial erratic on the Ephrata Erratic Fan.[1][2] It is a registered feature of the Ice Age Floods National Geologic Trail, on private property in Grant County, Washington.[3] The rock is more than 25 feet (7.6 m) tall,[4] and 60 feet (18 m) in diameter.[5] It is among a grouping of rocks said to have "arrived here through the great floods through Grand Coulee."[6]
