美国犹他州南部的地形呈巨大的梯形状。其顶部为布莱斯峡谷,海拔达2800米,最低一级位于大峡谷的边缘处。当地的派尼特人说该区“直立的红色岩石就像站在一碗形峡谷中的人群”。约六千万以前,该地区淹没在水里,有一层由淤泥、砂砾和石灰组成的六百米厚的沉积物。后来地壳运动使 The terrain in the southern Utah has a huge trapezoidal shape. The top of Bryce Canyon, up to 2,800 meters above sea level, the lowest level at the edge of the Grand Canyon. Local Nittans say the “upright red rock in this area is like a crowd standing in a bowl-shaped canyon.” About 60 million years ago, the area was submerged in water with a layer of 600-m-thick sediments of silt, grit and lime. Later crustal movement made