Some carpet contractors factor the stairs differently. For example, they might give you an estimate of $1.25 per square foot plus $100 extra for the stairway. Depending on the type of stairway installation and how complex it is, expect estimates of $4-$10 per step.
Appalachians. Appalachians. The Appalachian Mountain Range extends from the island of Newfoundland at the northeast end of the mountain range through most of Americaâs Northeast states and North Georgia to central Alabama at the southwestern end.
Print Email. The Appalachian Mountains, often called the Appalachians, are a system of mountains in eastern North America. The Appalachians first formed roughly 480 million years ago during the Ordovician Period, and once reached elevations similar to those of the Alps and the Rocky Mountains before they were eroded.