Blue Dolphin Realty LLC Share: Real Estate ServicesServices Visit Website Request Info P O Box 476 Columbus, Texas 78934 (979) 732-4570 www.bluedolphinrealtyllc.com Facebook About Map About Real Estate company in downtown Columbus serving Colorado County and surrounding communities. Residential - Commercial - Investment - Rental - Farm - Ranch - Acreage What's Nearby? Distance: 5 10 15 20 25 50 mi.