Visibility and intervisibility have always been important aspects ofspatial analysis in landscape archaeological studies but remain hampered by poor inputs such as small-scale study area, edge effects, and bare-earth models. This paper assesses intervisibility in a dataset of ~1000 burial mounds in the Middle Tundzha River watershed addressing these very issues via a regional analysis of several vegetation simulating terrain models that include mounds beyond the region to nullify edge effects.