In the framework of VLNDEF Programme (Victoria Land DEFormation control) aimed at the crustal deformation detection in the Victoria Land area, the main field activity was materialization and surveying of network. Both goals were fully achieved during the 1999-2000 Italian Antarctic Expedition. The VLNDEF project is carried on within the ANTarctic neo TECtonics Programme (ANTEC). The VLNDEF network consists of 20 GPS stations. It extends for about 500Km northwards of Terra Nova Bay (TNB) to reach the coast of the Pacific Ocean; and for about 200 Km inland.