Historical Image Map Viewer

The Historical Image Map Viewer enables visitors to locate, display, download, and print archived high-resolution digital aerial photo or ortho-photo images. Multi-resolution Seamless Image Database (MrSID) software, developed by  Lizardtech, Inc., and GIS software products ( ESRI & Blue Marble), were used to prepare and serve available archived digital photos from various years.

Aerial Photos and Orthophotos

The following Montgomery County Departments and Municipalities contributed funds for the purchase of the orthophoto products over the years. 

• City of Rockville

• City of Gaithersburg

• Department of Environmental Protection (DEP)

• Department of Health & Human Services (HHS)

• Alcohol Beverage Services (ABS)

• Department of Transportation (DOT)

• Department of Permitting Services (DPS)

• Department of Housing and Community Affairs (DHCA)

• Department of Recreation (REC)

• Office of Community Use of Public Facilities (CUPF)

• Department of Technology and Enterprise Business Solutions (TEBS)