Digital collections

Aerial photograph. The mudflats of Turnagain Arm at low tide. This arm ofCook Inlet dashed Captain Cook's quest for a Northwest passage. It also is thelocation of one of the few tidal bores on the North American continent. (Image credit: Alaska ShoreZone Program NOAA/NMFS/AKFSC; Courtesy of Mandy Lindeberg, NOAA/NMFS/AKFSC)