Alpine is an unincorporated community in Talladega County, Alabama, United States. Alpine is southwest of Talladega and northwest of Childersburg. It is known to Alabama residents for the site of YMCA Camp Cosby. The community gained its name from Alpine, a plantation owned by the Welch family. Over time, a town grew up around the plantation when a railroad came through. Initially known as Welchs Depot, it eventually came to be known as Alpine, in honor of the plantation.