Born-Digital or AnalogAnalogTranscriptPower resources. Colorado Colorado must carefully develop all resources: land, oil, natural gas, and oil shale. Colorado Investor Fact Sheet Ref #42 v.1 #6 Jy 17, 1972 First National Bank of Denver cuts back use of natural gas and electricity in effort to conserve energy. So does May D & F. Post Ja 10 1973 p.2 Colorado's great potential of coal, oil shale, and natural gas, etc., featured - with estimated amounts. Post Jy 22, 1973 p.45-;48CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Power resources. Colorado, [501743]. Denver Public Library Digital Collections, accessed 14/02/2026, https://digital.denverlibrary.org/nodes/view/1766532
