[en] In view of the constant development of Vertical Geothermal Probe (VGP) installations, it has become essential to have cartographic documents evaluating the geothermal potential for VGP in the 0-200 m depth range, and providing data such as thermal conductivity and ground temperature, in order to be able to dimension these installations at the feasibility study level. The first step is to take stock of the thermal data potentially available in mainland France from existing thermal response tests (TRT), which have yet to be collected, and of the methods used to draw up the potential maps already produced. At the end of this initial survey and data collection work, a more precise method for assessing the national geothermal potential for VGP is proposed. The implementation of this method could be the subject of a future project