Blackrock Hills is a populated place located in Montgomery County, Maryland. It appears on the Germantown USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 433.03 feet (131.99 m) above sea level.
Montgomery County · Maryland
Blackrock Hills is a populated place located in Montgomery County, Maryland. It appears on the Germantown USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 433.03 feet (131.99 m) above sea level.