Both natural and human-made landscapes change through time as a result of geomorphological processes, including landsliding. Geomorphologists regard landsliding as a process–response system that moves soil and rock downslope by materials falling, sliding and flowing in response to changes in the extant conditions. In studying landslides, geomorphologists seek to place the site-specific processes of downslope material movement within a framework of the overall landscape situation; a perspective which has important implications for all engineering investigations of ground movement. The geomorphological methods of studying landslides are the same as those employed by engineering geologists and geotechnical engineers, but with greater emphasis on field mapping and the use of remote sensing data (imagery, geophysics, LIDAR etc.). The overall aim is to provide a four-dimensional model of ground conditions which can feed directly into engineering investigations and any project design.