I have done a similar ride both on a BBC tour and on my tandem. Passed a motorcycle going down Catoctin Hollow Rd. Boy, was he surprised.....
Originally Posted by NoRacer
Now -that's- a ride! I'll have to give it a go some time.
Here's one that I'm planning, but haven't done, yet, because I'd have to drive to it first, if I want to do it in a day--~5,500+ ft of climbing:
Catoctin-Mountain-Ride-Unattempted