The Black Canyon of the Gunnison Today and Yesterday (Geological Survey Bulletin 1191)
Soft Cover, Washington: Government Printing Office, 1965. Good+ with no dust jacket.
Square, sound binding. Clean, slightly age-darkened pages. Wraps have light overall handling wear with some age-darkening. ; Geological features of the Black Canyon, Gunnison National Monument in Colorado. 9.25" (23 cm) tall. 76 pages.
Item #4890022
Price: $16.00 save 20% $12.80
See all works by Wallace R. Hansen, U S. Department of Interior