 On 15 October she fired a gunfire-support mission against VC vessels.On 25 November 1969, tank landing ship came alongside, and "Terrell County" entrusted her Seafloat support duties to "Vernon County" before sailing for Da Nang.Loading troops and equipment on 30 November 1969, she got underway on 1 December 1969 to neutralize a threatened mortar attack before returning and refueling from .