Member Directory The AAS maintains a membership directory to facilitate member interaction and to support the conduct of official Society business. Search directory for: Filter Results By Clear Filters Type of Science (-) Solar System/Planetary Sci (1) State (-) CO (1) Facet State City Black Hawk (1) Boulder (14) Darling Heights (1) Denver (1) Eaton (1) Golden (1) (-) Lakewood (1) Facet City Membership Class DPS (1) Facet Membership Class Division HAD (1) (-) DPS (1) Facet Division Showing 1-1 of 1 results Roger Clark DPS Affiliation Planetary Science Institute State/Province CO Country United States