What types of cemeteries (size, geographic region) are suitable for GPR mapping?
Any burial ground in the 48 contiguous United States, from a half-acre historic churchyard to a 500-acre municipal park cemetery, can be mapped with Sentry Mapping's ground penetrating radar. Our team tailors antenna frequency and GPS grid density to regional soils, climate, and terrain, delivering precise results without disturbing a single grave.
Ground penetrating radar works at any scale for cemetery mapping. Sentry Mapping’s professional field teams routinely survey tiny country churchyards measuring less than one acre, mid-sized 20- to 50-acre community cemeteries, and sprawling municipal sites of 300 acres or more. Because crews establish a sub-inch-accurate GPS grid before scanning, adding or subtracting acreage is simply a matter of extending the grid. No special preparation or staging area is required.
Geography is equally flexible. Our GPR crews travel to all 48 contiguous states and can produce clear subsurface images in Gulf-Coast sand, Appalachian clay, Rocky-Mountain till, and the high-moisture soils of the Pacific Northwest. Dry, sandy or loamy soils transmit radar best, but even heavier, wetter soils reveal the disturbed trench signature of a 3- to 6-foot-deep grave once the right antenna frequency and processing filters are applied. We bring a variety of equipment so technicians can match soil conductivity and burial depth.
Whether you manage a half-acre historic graveyard behind a rural church or a 500-acre metropolitan park cemetery, Sentry Mapping provides the same turn-key deliverables: high-density GPR coverage of every square foot, drone and GPS control points, a color-coded master map, an interactive digital cemetery GIS map with free public web access, and our optional cemetery management software. That means you get one reliable system for unmarked grave detection, preventing double sales, and planning future interments, regardless of size or location.