Description: This dataset comprises the United States Geological Survey (USGS) Grid for their 7.5-minute Quadrangle (or topographic) map sheets that cover San Diego County.Quadrangle maps are usually named after a local physiographic feature. The shorthand "quad" is also used, especially with the name of the map; for example, "the Ranger Creek, Texas quad map". On a quadrangle map, the north and south limits of the quadrangle are not straight lines, but are actually curved to match Earth's lines of latitude on the standard projection. The east and west limits are usually not parallel as they match Earth's lines of longitude.
Service Item Id: b5f9007e60684780b70e7cbbcbd85e79
Copyright Text: United States Geological Survey (USGS)