Saint Bethlehem or St. Bethlehem, also called "St. B" by locals, is an unincorporated community in Montgomery County, Tennessee, located just northeast of downtown Clarksville. St. Bethlehem has been incorporated into Clarksville city limits and is no longer a separate community, although locals still refer to that portion of Clarksville as "St. B". The main U.S. post office for Clarksville is in the St. Bethlehem community on U.S. Route 79 (Wilma Rudolph Bvd.).Originally named Cherry Station, the community was renamed by a former postmaster. It is home to most of Clarksville's restaurants, retail businesses, and industries, with U.S. Highway 79 (named Wilma Rudolph Boulevard in this area for the Olympic sprinter), running directly through the center. Beachaven Winery, Governor's Square Mall, the main branch of the Clarksville post office, and the county's main industrial park are also located in the area. The industrial park is currently being expanded to become one of the largest in Tennessee.St. Bethlehem is one of the most visited areas in Montgomery County. The Governor's Square Mall (not to be confused with the Governor's Square Mall of Tallahassee, Florida), which is the center of shopping activity in St. Bethlehem, one of two K-Marts, Sam's Club (located further north), and one of three Wal-Marts in the county are located off this street.During the Civil War, the Confederate States of America established Camp Boone at St. Bethlehem in 1861, along the Guthrie-Russellville Road (today SR 79) as a camp for the recruitment of Kentucky soldiers into the Confederate Army. A Tennessee state historical marker denotes the location.