The contour lines and elevation markings in Google Maps can be hard to understand. If you're trying to get a sense of how ...

Courtesy of the United States Geological Survey Advertisement Another helpful USGS employee, Steve Reiter, calculated the highest elevation in the municipal boundary of Oacoma as between 1,430 and ...

A new analysis using highly detailed elevation maps of the Chesapeake Bay suggests that North America's extensive areas of low-lying rural land will allow coastal marshes to persist or even expand ...

The higher base flood elevation also affects major renovation projects through FEMA’s "50% rule," a policy that requires projects in a special flood hazard area to employ the most recent flood ...