The Denbigh people were hunters competent in the boreal forest, on the arctic plains, and on the sea. Their great talent was in making microblades. The blades are similar to blades foud at Neolithic sites in the forests of Siberia and on the Mongolian steppes, but they are finer. Denbigh burin spalls, used by flintworkers for grooving and splitting antler and ivory, are sometimes fine as spruce needles, and today bear fossil witness to a great and meticulous skill that was lost to succeeding cultures. The oval foundations of Denbigh houses, still just under the moss at Cape Krusenstern (for arctic moss grows slowly) are much like the foundations of the low skin huts still erected by caribou hunters on Brooks Range passes.