Colebrook Iron Master's House, also known as the Colebrook Mansion and Colebrook Estate, is a historic home located at South Londonderry Township, Lebanon County, Pennsylvania. It was built between about 1791 and 1796, and is a 2 1/2-story, 3-bay wide by 2-bay brownstone residence in a vernacular Georgian style. Also on the property are a contributing spring house, kitchen house, stable, privy, carriage shed, spring trough, and an 18th-century iron fence. -Wikipedia.