This paper discusses Monte Carlo simulations of the fading statistics that would be observed for mobile-to-mobile links in hilly and mountainous terrain. Several terrain databases are employed for the simulations. Their terrain heights are scaled so that the dependence of fading statistics on terrain standard deviation can be investigated. The simulations make use of a computer code that accounts for diffraction over terrain obstacles and for non-specular scattering from terrain elements. Based on the simulations, simple propagation models are created that can be used in the evaluation of communication systems.