code: function () {
              // CONUS Extent: (-124.848974, 24.396308) - (-66.885444, 49.384358)
              // TODO: Expand this extent to cover HI when the server NO_DATA value issue is resolved.
              TiledElevationCoverage.call(this, {
                  coverageSector: new Sector(24.396308, 49.384358, -124.848974, -66.885444),
                  resolution: 0.000092592592593,
                  retrievalImageFormat: "application/bil16",
                  minElevation: -11000,
                  maxElevation: 8850,
                  urlBuilder: new WmsUrlBuilder("https://worldwind26.arc.nasa.gov/elev", "USGS-NED", "", "1.3.0")
              });
  
              this.displayName = "USGS NED Earth Elevation Coverage";
          }
docs: Constructs an Earth elevation coverage using USGS NED data.
  @alias UsgsNedElevationCoverage
  @constructor
  @augments TiledElevationCoverage
  @classdesc Provides elevations for Earth. Elevations are drawn from the NASA WorldWind elevation service.