The development of synclinal ridges and anticlinal valleys in a folder region is named as

In a folded mountain region, the typical pattern is anticlinal ridges and synclinal valleys. However, when erosion is more rapid on the ridges than valleys, the relief can invert - creating synclinal ridges and anticlinal valleys. This is known as Ridge and Valley Landscape or Inversion of Relief, commonly seen in the Appalachians. The other terms describe different coastal or erosional features.