Title: Old Man's Cave Grotto

Location: Hocking Hills State Park, Ohio

Tech: Canon EOS 10D, 35mm, f/22 (20 second exposure), ISO 100. 17-40/f4 L

Taken June 2004. Chain of falls through sedimentary canyon. Turquoise water due to high mineral concentration.

Title: Scott Gomer Creek Falls

Location: Arapaho National Forest, Colorado

Tech: Canon EOS 10D, 38mm, f/22 (30 second exposure), ISO 100. 17-40/f4 L

Taken October 2006. Silky smooth water cascades around VW Bug-sized boulder.

Title: Big Thompson River Falls

Location: Rocky Mountain National Park, Colorado

Tech: Canon EOS 5D, 22mm, f/22 (15 second exposure), ISO 50. 17-40/f4 L

Taken April 2007. Big Thompson River flows south down from the high peaks of RMNP, through Moraine Park, and down these cascades, complete with silty water that causes the amber color.