Underpass
for Virginia 56 beneath the Blue Ridge ParkwayAcid Rain on the Blue Ridge Parkway
Where Virginia Route 56 meets the Blue Ridge Parkway shows dramatic evidence of the weathering capacity of acid rain.
Underpass
for Virginia 56 beneath the Blue Ridge Parkway
As you
get closer, you can see how the mortar between the granite blocks has been
dissolving in acid run-off and leaving stalactites hanging from the arch.
A
close-up view of the stalactites
Updated 3/4/02