A digital orthophoto is a raster image which has been scanned from an aerial photograph, rectified with accurate geodetic survey control points. Use of Digital Orthophoto Quadrangles (DOQ) as a component to GIS data collection efforts, spatial analysis, and map display has become increasingly popular among many agencies within the GIS community. In Vermont, DOQs have been under development since 1994. Most of the state is available at this time (refer to DOQ Availability below).

History of Mapping Program

Until July 1st, 2009, the Vermont's orthophoto program was managed by the Vermont Mapping Program (VMP). VMP oversaw the process of DOQ development in Vermont. In 1974, the Vermont Mapping Program was started with the intention of creating a uniform statewide base map in order to promote efficient property tax mapping. In 1985, statewide hardcopy orthophotography coverage was completed and an updating process was started due to the age of the original aerial photography. In 1994, the first DOQs were funded and developed for Rutland and Windsor counties. With annual funding since that time most of Vermont's counties are presently available.

As of July 1st, 2009, the VT Center for Geographic Information (VCGI) is responsible for managing the State's orthophoto program. It will be managed under the auspices of the VCGI Imagery Program (VIP).

DOQ Availability

Check the VCGI Image Library web page for the latest status information.

Ordering Information

Refer to the VCGI Image Library web page.