{ "name":"Location/MD_USNGZone18S", "title":"Location/MD_USNGZone18S", "type":"Map Service", "typeKeywords":["ArcGIS Server","Service","Map Service"], "description":"The U.S. National Grid provides a standardized grid reference system that is seamless across jurisdictional boundaries and allows for pinpointing exact locations. Since USNG is standardized, it can be understood and used as a common geographic framework for response. Zone 17S covers part of Maryland. The vertical UTM boundaries are horizontal latitude band boundaries form (generally) 6° X 8° Grid Zones. Hence, the first three letters of the MGRS value, e.g. ?18S?, are referred to as the Grid Zone Designator (GZD). The fourth and fifth characters are a pair of letters identifying one of the 100,000-meter grid squares within the grid zone (or UPS area). The "S" in this instance is not to be confused with UTM Zone 18S for UTM in the Southern Hemisphere", "extent":[[-336109.97819351236,1336109.9668935118],[3885099.7139468794,4476650.720555]], "url":"https://geodata.md.gov/imap/rest/services/Location/MD_USNGZone18S/MapServer" }