
 HISTORY
  UNKNOWN SOURCE--FIRST CHARTED 1971; VISIBLE OBSTR, SCALED FROM ì
CHART IN LAT 27-48-43N, LONG 97-11-26W.
  CL119/75--USPS; REVISED TO OBSTR REP (ENT SRB 1/88)
  H10332/90-- OPR-K229-AHP; WELLHEAD WITH STEEL CAGE AND ì
FLASHING YELLOW LIGH