Complex sentence: Kern and Simpson documented their findings, noting the location and masonry style of the great houses, taking measurements, and sketching the canyon's major ruins; they described the kivas as "circular apartments sunk in the ground".
Split into simpler sentences: Kern and Simpson documented their findings, noting the location and masonry style of the great houses, taking measurements, and sketching the canyon's major ruins. They described the kivas as "circular apartments sunk in the ground".