The Chattahoochee River forms Roswell's western boundary, with the city of 92,000 occupying rolling terrain at roughly 1,050 feet elevation north of Atlanta. Piedmont topography creates gentle hills throughout the area, covered with hardwood and pine forests in undeveloped sections. Humid subtropical climate brings mild winters averaging in the mid-40s and hot, humid summers reaching the upper 80s. Roswell's historic district preserves antebellum and Victorian architecture along the river, while suburban neighborhoods extend eastward. The city functions as an affluent northern suburb within the greater Atlanta metropolitan area.