1780, British General Charles Cornwallis invaded North Carolina, and sent Major Patrick Ferguson into the mountains to root out the Patriot irregulars and protect the region's loyalists. Ferguson quickly routed McDowell's badly-outnumbered force, and McDowell retreated across the mountains to the Washington District. Ferguson pardoned a captured frontiersmen named Samuel Phillips (a cousin to Isaac Shelby) so that Phillips could carry a message to the Overmountain settlements. In the message, Ferguson warned the Overmountain Men that if they didn't lay down their arms, he would "march his army over the mountains, hang their leaders, and lay waste the country with fire and sword." Upon receiving the message, Shelby rode to Watauga to consult with John Sevier, and the two agreed to raise armies and cross the mountains to engage Ferguson. On September 25, 1780, several hundred frontiersmen gathered at Sycamore Shoals. Lead had been mined at nearby Bumpass Cove for ammunition, Sullivan County merchant John Adair volunteered funds for the expedition, and women prepared clothing and food for the long march. Black powder for the expedition was manufactured by Mary Patton at the Patton mill along nearby Powder Branch. The assembled force consisted of 240 men led by Sevier from Washington County, North Carolina (now Washington County, Tennessee) and the other counties of the Washington District; 240 from Sullivan County led by Shelby; and 400 from southwestern Virginia led by Colonel William Campbell. This main body planned to meet up with the remnants of McDowell's army in the mountains, bringing the total number to just over 1,000. Homeguards were left at Holston and Watauga under Anthony Bledsoe (1739–1788) and Charles Robertson, respectively. March over the mountains Campbell and his company of 400 Virginians gathered in Abingdon on lands owned by Capt. Andrew Colvill, now known as the Abingdon Muster Grounds, on the banks of Wolf Creek on September 23, 1780 and began the first leg of the march to meet up with a group of "Tennesseans" at Rocky Mount on September 24. They arrived at Sycamore Shoals on the 25th. On September 26, after a fiery sermon by Reverend Samuel Doak, the Overmountain Men began their long trek over the Blue Ridge, marching from Sycamore Shoals to Shelving Rock at the base of Roan Mountain, where they camped for the night. After crossing the mountain at Yellow Mountain Gap, they followed a well-worn path up the North Toe River Valley