Shelter Rock in Royal Basin is Composed of Pillow Lava
Shelter Rock, a monolith of pillow lava that was originally extruded under the ocean surface where plates collide, located near Royal Lake in the lower Royal Basin, Olympic National Park, Washington State, USA.
Author: Lee H. Rentz
© 2012 Lee Rentz
Photo size: 0.7 Mpixels (1.91 MB uncompressed) - 1000x667 pixels (3.3x2.2 in / 8.5x5.6 cm at 300 ppi)