Waterman Erratic Boulder, Whidbey Island, WA

Waterman Erratic, Glacial Erratic Boulder, Whidbey Island, WA. Erratic measures 38 feet (11.6 m) high, 60 feet on each side (18 m), circumference 155 feet (47 m). Glacial erratic boulders in Island County are a remnant of the Pleistocene glaciation that created Puget Sound and transformed the surfaces of Whidbey Island, Camano Island, and surrounding areas.