A 1976 bicycle tour across the United States was conceived by Greg Siple in 1973 while he, his wife June, and Dan and Lys Burden were riding an 18,000-mile bicycle tour, called Hemistour, from Anchorage, Alaska, to Tierra del Fuego, Argentina, to promote bicycling and hosteling [REF].
During a break from Hemistour, Dan Burden became severely ill and had to drop out.