On a mist-soft morning at a Banff lakeshore, a photographer leans close to mirrorlike water and wonders why the scene seems unnaturally saturated in pictures. The answer isn't Photoshop but geology and light: powdered rock from ancient glaciers and the way sunlight scatters through clear mountain air combine to paint water in vivid, almost electric, turquoise.Glacial Rock Flour Glaciers act like s...More