title: Incorrect representation of Barrier Canyon rock art site's history and other factors invalidate reported dates.
authors.affiliation: Scientific Foundation for Prehistoric Rock Art, Boulder, CO 80303.
authors.forename: Nancy
authors.initials: N
authors.lastname: Simon
authors.affiliation: Scientific Foundation for Prehistoric Rock Art, Boulder, CO 80303 rpreed@comcast.net.
authors.forename: Richard
authors.initials: R
authors.lastname: Reed
mesh_terms: D019015:Geologic Sediments; D049449:Luminescence; D055110:Radiometric Dating / Q000379:methods*