hogbacked

Plateau is something of a misnomer, however, since the landscape is constantly relieved: cut by great canyons, hogbacked with buttes and mesas, and pierced with spires -- many of which are catnip to climbers.

Climbing Towers Built by Nature 2008

Instead of being rounded, conical, or hogbacked, these heights were carved by nature into the semblance of castle battlements, but with extremely deep indentations.

A Voyage to Arcturus David Lindsay 1910

In form they are hogbacked, and viewed from a distance have a smooth and even outline but on a nearer approach they are found to be rocky and rugged.

The Seven Great Monarchies Of The Ancient Eastern World, Vol 2. (of 7): Assyria The History, Geography, And Antiquities Of Chaldaea, Assyria, Babylon, Media, Persia, Parthia, And Sassanian or New Persian Empire; With Maps and Illustrations. George Rawlinson 1857