From Asheville, NC:

Take I-26 West to exit 9, Hwy 19E toward Burnsville for 18 miles.
In Burnsville turn LEFT on Hwy 197N for 12 miles.
Turn LEFT on 226 N Hwy, travel about 5 miles
to Beech Creek entrance on LEFT.

From Johnson City, TN:

Take I-26 toward Asheville,
Take Exit 32, Unicoi Rd, TN-173.
Turn RIGHT on TN-173 for 1/2 mile
Turn LEFT onto TN-107 / TN-173.
Continue to follow TN-107 / NC-226 for about 12 miles.
Beech Creek will be on the RIGHT.