produced by USDA Forest Service, San Dimas Technology and Development Center, in cooperation with the FHWA Coordinated Federal Lands Highway Technology Implementation Program
produced by USDA Forest Service, San Dimas Technology and Development Center in cooperation with the FHWA Coordinated Federal Lands Highway Technology Implementation Program ; a production of Broadcast Media & Technology Center, Office of Communications, U.S. Dept. of Agriculture, Washington, D.C. ; field producer and director, Bob Stobaugh ; script by Pat O'Leary, Jeff Gersh