ARCH is no longer available.

ARCH has been consolidated with the Cultural Resources Geographic Information System (CRGIS). The ARCH server has been removed as of December 2009 and the service is no longer available.

To find a National Register nomination in the CRGIS, please refer to the Finding National Register CRGIS tutorial (PDF, 200 KB).

CRGIS continues to provide public access to Pennsylvania's inventory of National Historic Landmarks and National Register of Historic Places. At this site, you still will find the original, complete nomination forms for over 3000 National Register nominations and almost 200 National Historic Landmark properties. Each nomination includes the name and location of the property, a physical description, a statement of the property's significance, geographical data, bibliographic references, and, at least one representative photograph for each property or district. In addition, there will be generalized data for each resource and map locations for most. Forms can be retrieved through a searchable database (AskReGIS) or the map interface.

If you are having difficulty finding a National Register or National Historic Landmark nomination, please contact . For all other questions regarding the CRGIS, please contact us at

Visit the PHMC website for additional information concerning NHLs and the National Register in Pennsylvania.

Other web-based resources that you might want to check out include: National Historic Landmarks , The National Register of Historic Places, NHLs in Pennsylvania, Philadelphia Architects and Buildings, and the HABS/HAER Collection.