Posts Tagged ‘Rock Flour’

Rock Flour = Turquoise Rivers

26/02/2009
Wilken River, Makarora BC, NZ

Wilken River, Makarora BC, NZ

Kerin Folks Flat on the Wilkin River is about an hour into an eight-hour trek to the Top Forks Hut area.  I’ll include more images of that area soon, but felt I had to post this image ASAP. “Rock flour” colours the water the brilliant turquoise blue that is visible in this image. Rock flour is a result of the glacier a few miles upriver, dragging and grinding rocks and stones between the bottom of the glacier and the ground. The curious color of the fine powder that comes out of the glacier’s terminus is the subject of many a tourist’s query. So I’ve been told, rock flour is simply mud that hasn’t been exposed to the air.  Once exposed, after a number of years, it turns brown.  In any event it sure makes for good images.  This is probably one of my favorite, even after being a professional photographer for a number of years.

 Top Forks is a remote part of Aspiring National Park, right in the center of the park, accessible from the Makarora West village area.  The highlight of the Top Forks valley is  Mt. Castor and Mt. Pollux from which hanging glaciers drop house-sized ice blocks throughout the day and night, making a roaring sound heard from the hut.