Complex sentence: Chimney Tops is a double-capstone knob on the eastern slope of the Sugarland Mountain massif that stretches north-to-south across the north-central section of the Smokies.
Split into simpler sentences: Chimney Tops is a double-capstone knob on the eastern slope of the Sugarland Mountain massif. This massif stretches north-to-south across the north-central section of the Smokies.