Spanish. Dan Burden became ill with hepatitis while home in the U.S., forcing the Burdens to abandon Hemistour and instead focus on bringing Bikecentennial to fruition. The Siples, however, continued on, arriving in Ushuaia, Tierra del Fuego, Argentina, on February 25, 1975. Areas visited North America Alaska, U.S. Yukon, Canada British Columbia, Canada Montana, U.S. Oregon, U.S. California, U.S. Mexico Central America Guatemala El Salvador Honduras Nicaragua Panama South America Colombia Ecuador Peru Bolivia Argentina Post-Hemistour After reaching the southern tip of the Western Hemisphere, Greg and June Siple returned to Missoula to join the Burdens in preparing for Bikecentennial. See also Adventure Cycling Association References Bicycle tours