i-InfoTerre is the BRGM geoscience data viewer for Android. It offers online cartographic access to different thematic layers: files on the basement, water boreholes, old industrial sites, ground movements, underground cavities and random shrinkage-swelling. Several base maps are available: orthophotos, plan but also geological maps. The positioning on the map is done either manually (pan & zoom multitouch), or at the current position thanks to the GPS, or by the use of a municipal directory. Qu