3. THE ELEVATIONS SHOWN HEREON HAVE BEEN PROJECTED FROM U.S.C & G.S.
BENCHMARKS: U268, DATED: 1966, CONCRETE MONUMENT W/BRASS DISK,
ELEVATION: 28.542 METERS OR 93.6415 FEET, 1929 ADJUSTMENT, N.G.V.D. DATUM,
AND BENCHMARK: STATION NUMBER A2, ELEVATION: 48.4630 METERS OR 158.9990 
FEET, 1929 ADJUSTMENT, N.G.V.D. DATUM.