Star Trails and Northern Lights above Denali (Mt. McKinley) and the Chulitna River from Denali Viewpoint South along the Parks Highway, Denali State Park, Southcentral Alaska

March 14, 2013
Red and green Aurora Borealis dancing above Denali (Mt. McKinley) and the Chulitna River from Denali Viewpoint South along the Parks Highway, Denali State Park, Southcentral Alaska

March 14, 2013
Broken shards of ice at sunrise along the North Shore of Lake Superior near Duluth, Minnesota

February 13, 2008
New bridge and Motor Mill along the Turkey River,  Clayton County, Northeast Iowa

December 21, 2012
Motor Mill reflecting in the Turkey River,  Clayton County, Northeast Iowa

December 21, 2012
Water flowing into the Turkey River at the Motor Mill State Historic Site, Clayton County, Northeast Iowa

December 21, 2012
New bridge and Motor Mill reflecting in the Turkey River,  Clayton County, Northeast Iowa

December 21, 2012
New bridge and Motor Mill along the Turkey River,  Clayton County, Northeast Iowa

December 21, 2012
Flare tower at Flow Station 1 (FS1) with oil rigs and Deadhorse in the background, Prudhoe Bay Oil Field, North Slope, Arctic Alaska

June 23, 2012
Star Trails and Northern Lights above Denali (Mt. McKinley) and the Chulitna River from Denali Viewpoint South along the Parks Highway, Denali State Park, Southcentral Alaska

March 14, 2013
Star Trails and Northern Lights above Denali (Mt. McKinley) and the Chulitna River from Denali Viewpoint South along the Parks Highway, Denali State Park, Southcentral Alaska

March 14, 2013
Star Trails and Northern Lights above Denali (Mt. McKinley) and the Chulitna River from Denali Viewpoint South along the Parks Highway, Denali State Park, Southcentral Alaska

March 14, 2013
See photo in original gallery.