Glacier NP: Avalanche Gorge VerticalGlacier NP: Avalanche GorgeGlacier NP: Avalanche AbstractGlacier NP: Avalanche Abstract TwoGlacier NP: Lake McDonald DawnGlacier NP: Lake McDonald SundownLake Michigan: Manistee Lighthouse SunsetLake Michigan: Pierport Red DotMorning Pittsfield DockBridge over the HousatonicRocks at Convict LakeNiagara Falls: Light ShowFall at Multnomah FallsMultnomah BridgeLetchworth State Park NY: Middle Falls CascadeLetchworth State Park NY: Middle FallsLetchworth State Park NY: Fall afternoon Middle FallsGreat Falls NP: Fall on the PotomacMt. Hood from Trillium LakeSalton Sea Swirls