Contact National & State Register Staff Use this map to determine which National Register historian to contact regarding your property. For the following counties contact Eric Newcombe at eric.newcombe@state.co.us: For the following counties contact Eric Newcombe at eric.newcombe@state.co.us: Alamosa Arapahoe Archuleta Chaffee Conejos Costilla Custer Delta Denver Dolores Douglas Elbert El Paso Fremont Gunnison Hinsdale Huerfano La Plata Lake Mesa Mineral Montezuma Montrose Ouray Park Pitkin Pueblo Rio Grande Saguache San Juan San Miguel Teller Adams Baca Bent Boulder Broomfield Cheyenne Clear Creek Crowley Denver Eagle Garfield Gilpin Grand Jackson Jefferson Kiowa Kit Carson Larimer Las Animas Lincoln Logan Moffat Morgan Otero Phillips Prowers Rio Blanco Routt Sedgwick Summit Washington Weld Yuma Main navigation - Levels 3 & 4 About the State Historic Preservation Office Events & Education Grants & Incentives Office of Archaeology & Historic Preservation Review & Compliance Survey & Designation Survey & Inventory National & State Registers How Do I Nominate My Property? Commonly Asked Questions Nomination Forms Nomination Deadlines Colorado State Register of Historic Properties Preservation Planning Unit Resource Center Cultural Landscapes Guidance Recent Listings in the National & State Registers Listed Properties Multiple Property Submissions Contact National & State Register Staff Certified Local Governments