|Methods and Results A GIS base was created in order to draw up
the requested environmental hazard maps for slope instability
and geo-archaeology. As the pixel value increases, so too does
the risk of slope instability and there is a greater chance of
geo-archaeological finds. Four weighted factors were combined
for the slope instability mapping, selected on the basis of
knowledge of the field and supplementary literature. In this
region a great many factors (topography, lithology, climate,
human influence, tectonics, etc.) all play a part in the
development of slope instability. The most important factors
that trigger mass movements are (1) slope gradient, (2)
lithology, (3) proximity of faults and lineaments and (4), and
proximity of thalwegs or wadis. Slides causing large masses of
material to move down the slope Faults due to (neo)tectonic
activity A fifth information layer consists of the locations of
earlier mass movements on the slopes. This information is
obtained from the geomorphological map drawn u