MARROWBONE LAKE. Directions: On Marrowbone Lake Road near Joelton 20 miles north of Nashville. From Nashville: Take U.S. Highway 41A (Clarksville Highway). Left on Eatons Creek Road. Right on Grays Point Road. Size: 60 acres, Facilities: Boat launching ramp, fishing pier, boats & trolling motor rentals, bait & tackle are available, fishing licenses & permits, restrooms, picnic tables & concessions. PHONE: 615.876.6012