From “Where We Were in Vietnam” by Michael P. Kelley, page 5-40.
“Barbara, FSB (YD 253-290)
A.K.A. Davis Hill and FSB Davis. Apx 28 km W Camp Evans and 50 km W to WNW Hue. ”
During summer and fall of 1968 it was referred to as Barbara (FSB) and was part of the 1st Cavalry Division Firebases around Base Area 101. I have the converted Latitude and Longitude as:
16˚, 34′ 34.77″ N
107˚, 10′ 41.44″ E