RT Journal Article SR Electronic T1 COLORADO: VISIONS OF AN AMERICAN LANDSCAPE JF Landscape Journal FD University of Wisconsin Press SP 70 OP 71 DO 10.3368/lj.12.1.70 VO 12 IS 1 A1 Joan Hirschman YR 1993 UL http://lj.uwpress.org/content/12/1/70.abstract AB