The GeoMAC application will no longer be available after April 30, 2020. The information provided by GeoMAC will be managed by the fire community.
Please refer to the information in the following link for more information - GeoMAC Transition
How GeoMAC Works
In order to give fire managers near real-time information, fire perimeter data is updated daily based upon input from incident intelligence sources, GPS data, infrared (IR) imagery from fixed wing and satellite platforms. The GeoMAC web site allows users in remote locations to manipulate map information displays, zoom in and out to display fire information at various scales and detail, and print hard copy maps for use in fire information and media briefings, dispatch offices and coordination centers. The fire maps also have relational databases in which the user can display information on individual fires such as name of the fire, current acreage and other fire status information.
See the Help page for more specific information.