GeoModel, Inc. conducts professional, geologic surveys for locating ledge throughout the United States. Ledge is top of bedrock that is sometimes a problem for construction of buildings, installation of pools, or other land improvement projects.
GeoModel utilizes ground penetrating radar (GPR) for locating ledge on a property. GPR is a non-destructive geophysical method that is one of the best methods for locating ledge.
GeoModel, Inc. can locate depth to top of ledge for individual transect lines at a site or for an entire area of a property. Here are individual ground penetrating radar (GPR) images of GeoModel, Inc. locating ledge at different properties.
This GPR image shows the undulating surface of rock ledge underlying a sandy soil.
Below is a GPR image of a sloping ledge at a depth of 5 feet at the beginning (left edge) of the image to a depth of over 8 feet at the end (right edge) of the image.
If GeoModel, Inc. scans a specific area of property for locating bedrock ledge, then we can provide a contour map of the top of ledge, as shown below:



