Rock Polish

August 09, 2010

Rockpolishin BC

Photographer: Phillip Lachman 
Summary Author: Phillip Lachman

Glaciers once dominated the Sea to Sky Corridor from Vancouver to north of Whistler, British Columbia, Canada. At the height of the last Ice Age, one and a quarter miles (2.0 km) of ice covered the present-day sites of Squamish and Whistler. Evidence of how that ice shaped the landscape is still visible throughout the Sea to Sky Corridor as demonstrated above, for example. Here, just south of Squamish and next to the Sea to Sky Highway, rock outcrops have a smooth, polished appearance. Massive ice flows polished the surface of the rocks with the fine rock grit in the base of glacier. Pebbles embedded in the ice scratched the rock, marking the direction the ice once flowed. Photo taken on March 30, 2010.

Photo details: Camera Maker: FUJIFILM; Camera Model: FinePix S7000; Focal Length: 7.8mm; Aperture: f/4.5; Exposure Time: 0.0048 s (1/210); ISO equiv: 160; Exposure Bias: none; Metering Mode: Matrix; Exposure: program (Auto); White Balance: Auto; Flash Fired: No;
Color Space: sRGB