There are two ways:
From 29 go north about 5 miles north of Airport turn. Turn right onto 641. Go 6 curvy miles. Turn right into entrance.
From 20 go north about 12 miles. Turn left onto 641. Go about 1/3 mile. Turn left into entrance.
From Northern Va
Go south on 29 to Ruckersville. Turn left onto 33. Go 7 miles to Barboursville. Turn right onto 20.
Go 2 miles and turn right onto 641. Go 1/3 mile turn left into entrance.
Take exit 136. Turn right onto 15 north. Go about 10 miles to Gordonsville. Get on route 33 west. Go about 7 miles to Barboursville. Turn left onto 20 south. Go about 2 miles. Turn right onto 641. Go 1/3 mile turn left into entrance.