Although members of the Canadian Arctic Expedition did not travel extensively within the boundaries of what is now Tuktut Nogait National Park, they did travel up some rivers and along the nearby coast. Their observations have contributed to knowing this park and the history of its use.

In March and April 1915, Chipman and O'Neill travelled from Bernard Harbour west to Darnley Bay and surveyed the coast back east to Bernard Harbour. O'Neill completed geological investigations on the east side of the bay. They explored the Hornaday (named by Stone in 1898) and Brock Rivers (named for the geologist and former Director of the Geological Survey of Canada). O'Neill ascended Brock River and made a geological section of the country.

R. M. Anderson and Mike Siberia explored the Crocker and Inman Rivers; Anderson collected many specimens and described features of the coast near the Park, and spent some time exploring Mount Davy. Chipman also explored the Croker River and came close to "discovering" Bluenose Lake.

	Tent on a sandbar island at the junction of the first large creek, Crocker River, in the canyon about 12 miles from the river mouth, steep walls about 100 ft. high; man in an Alaskan-style caribou parka, tent, Amundsen Gulf, Nunavut. March 19, 1916. RMA 38900. Source: Canadian Museum of Civilization

Description of Park