Born-Digital or AnalogAnalogTranscriptTrees. Pine The ancient Bristlecone Pine Forest in California. Desert v.33 #7 Jy 1970 p.22-25 Ancient bristlecone pines on Mt. Evans date back 2,000 years. Post Empire Jy 12, 1970 p.44,45 The killing of area pine trees by pine beetles. Post Empire Mr 18, 1973 p.18-22 Logging by helpicopter ridding Black Hills of diseased pines 1974 ponderosa pines on front range periled by disease Colorado Forest Service seeks to curb pine beetle. Post Ap 21, 1974 p.35CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
