Visibility and intervisibility have been important aspects of spatial analysis in landscape archaeological studies, but remain hampered by computational intensity, small-scale study area, edge effects, and bare-earth digital elevation models. This paper assesses intervisibility and prominence in a dataset of over 1000 burial mounds in the Middle Tundzha River watershed in Bulgaria. The aim is to obviate the pitfalls in regional assessment of visibility through vegetation simulation and MC modelling and to gauge when intervisibility and prominence truly mattered to past mound-builders.