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 Texas, Louisiana, New Mexico, Oklahoma, Colorado, Indiana, and Arkansas. We also an office in Pecos, Texas.