Types of Historic Designation

The Colorado State Register of Historic Properties includes all properties designated under the Colorado State Register nomination process AND all properties listed in the National Register of Historic Places. This page is an aid to determining the type of resources listed.

Colorado State Register

Listing for a building, structure, site, object, or district designated through the Colorado State Register nomination process. A district contains a group of related sites, buildings, structures, or objects. The elements within a district are united historically or aesthetically by plan or physical development.

National Register

Listing for a building, structure, site, object or district. A district contains a group of related sites, buildings, structures, or objects. The elements within a district are united historically or aesthetically by plan or physical development.

National Historic Landmarks

Properties recognized by the Secretary of the Interior as possessing national significance.

World Heritage Sites

Properties recognized by the World Heritage Committee, an agency of UNESCO, which are cultural landmarks and natural areas of such unique value that they are part of the heritage, not just of individual nations, but of all humankind.

Other Designations

Multiple Property Submissions

Multiple property submissions group significant properties by related themes, trends, and patterns of history. Each property listed under a multiple property submission is related to the common theme. Multiple property submissions fall within three broad types.

National Register Multiple Property Submission

A series of individual and/or district listings of thematically-related historic properties.

National Register Multiple Resource Area

A series of individual and/or district listings from a single geographic area which encompasses a series of resources linked by place rather than by historic association.

National Register Thematic Resource

A series of individual and/or district listings of thematically-related historic properties.

Certified Local Districts

Historic districts established by state or local governments that have been certified by the Secretary of the Interior as substantially meeting the National Register Criteria for Evaluation. Such certification may be used as a basis for applying for federal historic preservation related income tax credits.

State Historical Monuments

Properties owned and maintained by History Colorado on behalf of the State of Colorado.