Falling on high mountains, rain water would gather in a 400 meters wide valley flanked by two mountains east of the city of Ma'rib.
These are lush, green valleys flanked by steep mesas.
Their path took them down into a shallow valley flanked by rocky bluffs.
We approached Rauris by a serpentine road winding upward through a broad valley flanked by peaks as high as 12,000 feet.
Pembroke town is located at the bottom of a small valley, flanked on all sides by woodland and arable farmland.
The archaeological site of Bamiyan, about 100 miles west of Kabul in Afghanistan, is set in a broad, flat valley flanked by high stone cliffs.
They passed through a valley flanked by eroded mountains.
The rocks containing the art work are situated in a valley flanked by the slopes of a sandstone table mountain.
But they did not, and dawn showed us an empty valley, flanked by silent hills.
It was a land of narrow valleys, flanked by barren, mostly pine-wooded hills.