In 1979, bush pilot Bob Ambrose's Norcrown Air was operating this Cessna A185F, C-GHEP and Pilatus Turbo Porter CF-ZIZ on floats from a lake near Ross River, YT serving tourists, canoeists and exploration companies. One of his 1979 contracts was supporting Cominco's large regional mineral exploration in the MacKenzie Mountains. This Cessna was photographed at the old fur trading post at Pelly Lakes, 120 km east of Ross River, where Cominco has a seasonal base with a Bell Jet Ranger. C-GHEP was built in 1963 and imported to Canada in 1974. It was in cancelled from the CCAR in Apr 2019. This is the prototype Cessna A185F - hence the unusual c/n.