E.L.S. SURVEYING & MAPPING INC.
E.L.S. Surveying & Mapping, Inc. is a full service surveying and mapping company. E.L.S. and it's subsidiary Harry L. Johnson and Associates have served the Oil and Gas industry since 1946. E.L.S.’s home office is in Tyler, TX., where we serve East Texas, Louisiana and Arkansas. We also have offices in Pleasanton, Carrizo Springs, and Pecos, Texas. From those locations, we serve South, Southwest and West Texas, respectively.