A group of pyroclastic cones is located in the central part of the Siunik volcanic ridge along the Armenia/Azerbaijan border about 60 km SE of Lake Sevan. The Tskhouk-Karckar volcano group was constructed within offset segments of the major Pambak-Sevan strike-slip fault trending SE from Lake Sevan. Eight pyroclastic cones produced three generations of Holocene lava flows (Karakhanian et al., 2002). Abundant petroglyphs, burial kurgans, and masonry walls were found on flows of the older two age groups, but not on the youngest. Lava flows from cinder cones of the Tskhouk-Karckar volcano group overlie petroglyphs dated to the end of the 4th millennium and beginning of the 3rd millennium BCE and are themselves used in gravesites dated at 4,720 +/- 140 years ago. Following these eruptions, the area was not repopulated until the Middle Ages.