Fall Guided Hike to Martin Mine Friday, Oct 26, 2012 1 PM to 3 PM This event has already occurred.   (Archived) Enjoy crunching leaves along the Martin Mine Trail. See vertical mine shafts, “tailings,” the site of the Hamby Mill, and a lovely waterfall. This one mile trail is moderately difficult. A ride to the trail is provided. $5 parking. 706-878-3087. Location: Smithgall Woods State Park 61 Tsalaki Trail Helen, GA 30545 Directions: GPS Coordinates: N 34.691950 | W -083.767150 Located on Ga. Hwy. 75 Alt, 3 miles west of Helen. Smithgall Woods State Park 61 Tsalaki Trail Helen, GA 30545