Colorado. State tree Story behind selection of Colo. blue spruce as official tree. Colo. Outdoors v.9 #4 Jul.-Aug. 1960 p.26-29 some suggestions as` to choice.school journal 1892 Colorado blue spruce (picea.pungens) designated state tree by 32nd General House Joint Resolution #7. was officially Assembly (1939). 8345.1 C71s v.32 1939 p.614 0
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