Trees. Elm 1200 block on St. Paul St. plans campaign to fight Dutch Elm disease. Post Ja 22, 1970 p..19 Largest cottonwood tree in country is near Hygiene and 103-foot American Elm is nearly largest in Colorado. RMN Je 26, 1970 p.98 Review of Denver-Colorado situation. RIV Jy 25, 1970 P.53 Mayor urges immediate action to save elms. Post Jy 29, 1970 p.1,3 Dutch elm peril; retouched photo shows Speer Blvd. sans elm trees. Post Jy 30, 1970 p.68
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