MRLC

Multi Resolution Land Characteristics Consortium

A seamless download site that has NED and NLCD data for the US in BIL format.

http://www.mrlc.gov/viewerjs/

Download the data in BIL format

Follow these steps to download the terrain data in the BIL format

Click the download button for each data-set and wait for the extraction process to complete (Could take 5-10 minutes or longer)

Unzip the files in to a folder. Use separate folders for NED and NLCD data

Configuring Pathloss 5 to use the data

Select Configure -> Setup GIS Configuration from the Pathloss 5 main menu.

Select the top level folder that contains all the unziped NED data.

Clutter is set up similarly.