Currently, there are three loops at Mt Tabor Park totaling about 8-10 miles. The the loops are stacked in a "snowman" formation and make them progressively harder. The trails are directional depending on the day of the week. Monday, Wednesday, Friday, & Sunday are clockwise. Tuesday, Thursday, and Saturday are counter clockwise. Almost all of the initial two trails are singletrack and there seems to be a large amount of unused woods back there just begging for new trails. These are NICE tight, twisty, technical, rocky, singletrack that makes you pay for your gains but they won't totally sap your flow and keep you at a snails pace either. Many parts of these trails reminded me a lot of Blankets Creek just up the road in Cherokee county and in my book that's a HUGE compliment. Keep your eyes open for dogs and hikers but they are few and far between.
Night riding allowed, but the park closes at 11pm.
Starting from I-75 Take exit 265 (North Marietta Parkway) and head west. Go 2.4 miles into the city of Marietta and turn right onto Whitlock Ave. Go 10.3 miles and turn right onto East Paulding Drive. The park will be 3.1miles ahead on your left. 1550 East Paulding Drive, Dallas, GA 30157.
http://www.singletracks.com/item.php?c=1&i=3660