Transco Energy Ventures, Houston, TX No description specified. 1-3 (3 Records) Documents Archaeological Survey of the 11.94 Acre Holbrook Tract, Hart County, Georgia (1992) Archaeological Survey of the Proposed Transco / Hartwell Turbine Site, Hart County, Georgia (1992) Archaeological Survey of the Transco / Hartwell II Tract, Hart County, Georgia (1992)