(Tweetsie Railroad) NNE of Blowing Rock, Blowing Rock Township, Watauga County, NC. US221/321 NNE 2.3 miles from jct with Blue Ridge Pky just N. of Blowing Rock to Tweetsie on the W side of the road at 4189. Admission. (2-16-08, N36 10.173 W81 39.049) Photos by Gary Stebbins.