Whitfield, a Beulah, Colorado resident, volunteers to survey and record rock art of Picture Canyon for the Forest Service, Bureau of Land Management, and Parks Service. She has studied arboglyphs and conducted archival lab and excavation projects. She serves as the Project Chair and Secretary of Colorado Rock Art Association.
According to Whitfield, the Purgatory River Drainage is one of the richest sources of rock art in the state of Colorado. Southeastern Colorado, itself, has an abundance of this seldom seen cultural resource. If