added by archaeologs An Arctic Small Tool Tradition flint industry found at Cape Denbigh, Iyatayet, Cape Krusenstern, Onion Portage, and other Alaskan sites. The typical artifacts are finely worked microblade tools (bladelets, small crescents), burins, and bifacially pressure-flaked points. The Denbigh complex had developed by c 3200 BC. The Arctic Small tool tradition spread eastwards over the whole Arctic zone from Alaska to Greenland and contributed to the earliest Eskimo cultures. Land mammals seem to have been the primary focus of subsistence activity.