Shelby and his Overmountain Men crossed back over the Appalachian Mountains and retreated back into the territory of the Watauga Association at Sycamore Shoals in present day Elizabethton, Tennessee, and by the next month on September 25, 1780, Colonels Shelby, John Sevier, and Charles McDowell and their 600 Overmountain Men had combined forces with Col. William Campbell and his 400 Virginia men at the Sycamore Shoals muster in advance of the Battle of Kings Mountain north of present day Blacksburg, South Carolina in North Carolina on October 7, 1780.