Born-Digital or AnalogAnalogTranscriptGlenwood canyon, Colorado Proposed opening of limestone quarry is threat to beauty of canyon. RMN Ag 31, 1969 p.5 Interstate 70 stirs up row with conservationists over canyon. Post S 14, 1969 P.33D Recreation areas studied. Post 0 2, 1969 P-39 1970 plans for #70's Glenwood Canyon freeway listed. Post N 30, 1969 p.27 Plans discarded for large limestone quarry in canyon. R2N Ap 5, 1970 p.16CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng