20251001 13071800 1.0 TRUE Guard Rails FIELD DATA COLLECTION OF ATTRIBUTES AND POSITION, CONSTRUCTION OF LINES BY SURVEY SECTION. DATA POST PROCESSED TO BASE RECEIVER, PRIMARILY GSM1, IN SOME CASES SKYB FIELD DATA COLLECTION: R. DOMINGUEZ, H. SALDANA, R. MACIAS, D.BOZARTH, M. WITTIG, C. HUBBELL. OFFICE PROCESSING AND PREPARATIONS: J. OWENS, C. PEER, A. SILVA.