The crust overlies the solidified and uppermost layer of the mantle. Commonly overlies Prairie Formation (alluvium) landward and Biloxi Formation (shelf deposits) near shore. This Pleistocene layer disconformably overlies Pliocene and Miocene diamictites. The Bayan Shireh Formation overlies the Baruunbayan Formation and underlies the Javkhlant Formation. It overlies a thick sequence of Carboniferous Limestone beds. The occipital bone overlies the occipital lobes of the cerebrum. It overlies the Niobrara division and underlies the Fox Hills beds. Mount Jefferson overlies an silicic volcanic field from the early Pleistocene. Navajo Sandstone frequently overlies and interfingers with the Kayenta Formation of the Glen Canyon Group. Outside of the paleovalleys, the Redwall Limestones overlies the Muav Limestone. Considerable military airspace overlies much of the county and adjacent bay and coastal waters. Coropuna overlies the margin of a buried caldera. It overlies the metacarpal bones and the interosseous muscles. The cut overlies the sternum, ribs, and connecting costal cartilages. The Rheasilvia crater is younger and overlies the Veneneia crater.