Final answer:
The main industries in this region are farming, textiles, and mining. This region is known as the Valley and Ridge province in the Appalachian Mountains.
Step-by-step explanation:
The main industries in the region of high ridges and narrow valleys are farming, textiles, and mining. This region is known as the Valley and Ridge province, which is part of the Appalachian Mountains. The Valley and Ridge province is composed of highly folded and faulted sedimentary rock, with Paleozoic-age sandstones forming ridges and Devonian and Cambrian shales forming valleys.