In Baluchistan ridges curve continuously through the borderlands of Iran, Afghanistan and Pakistan. The lower Indus River floodplain fills …the broad dune-flecked flats to the right, near a coast of scalloped promontories tipped with the vestiges of transverse ridges. Kandahar is at center top, while Quetta nestles in the high mountains to the right. These unique ridges are known to few travelers, a scattering of locals, and some dozens of pilots from carriers offshore.