I-77 N. Take Exit 36 Turn Left Onto Hwy 150, Turn Right On Perth Road, Turn Right Into Calvin Creek Entrance To The Model. From Charlotte: Merge Onto I-77 N. Take Exit 42 For Us-21/Nc-115 Toward Troutman. Turn Left Onto Nc-115 N/Us-21 N. Turn Left Onto Autumn Leaf Rd.