In May 2003, Lee led an Arctic winter expedition to drive the Mars Institute's Mars-1 Humvee Rover from Resolute Bay on Cornwallis Island, to Cape McBain on Devon Island across the Wellington Channel's 40 km of sea-ice. The Mars-1, bright red in color, is a modified M997 military ambulance Humvee manufactured by AM General of Mishawaka, IN. Accompanying Lee were American explorer John Schutt and Canadian Inuit field guides Paul Amagoalik and Joe Amarualik of Resolute Bay. The crossing was a success and the Mars-1 has since been serving on the Haughton-Mars Project as a mobile field lab and concept vehicle for future pressurized rovers to be used on the Moon or Mars. NASA's first simulated pressurized rover field traverse was conducted at the Haughton-Mars Project in July 2008 using the Mars-1. Lee commanded the mission while Andrew Abercromby of the NASA Johnson Space Center served as field lead of the rover traverse investigation.