Fic. 3.—A sedimentary ridge near Owl Canyon (looking north). Cerco- 
carpus bushes are seen on the slopes but not in the fine-grained soil below. 
Fic. 4.—View of a series of sedimentary ridges east of Box Elder, Larimer 
County, Colo. The ridges are covered with Cercocarpus. Note the very sparse 
growth of rock pine. From a photograph by the author. 
Botany OF NORTHEASTERN LARIMER COUNTY 
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