Aerial photograph. The mudflats of Turnagain Arm at low tide. This arm of Cook Inlet dashed Captain Cook's quest for a Northwest passage. It also is the location of one of the few tidal bores on the North American continent.

Image ID: line5063, NOAA's America's Coastlines Collection
Location: Alaska, Upper Cook Inlet,Turnagain Arm
Credit: Alaska ShoreZone Program NOAA/NMFS/AKFSC; Courtesy of Mandy Lindeberg, NOAA/NMFS/AKFSC

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