In the spring of 1886, Crook went after Geronimo and caught up with him just over the Mexico border in March. Geronimo and his group fled, and Crook could not catch them. The States Department of War/War Department reprimanded Crook for the failure, and he resigned. He was replaced by Brigadier General Nelson Miles in April 1886. Miles deployed over two dozen heliograph points to coordinate 5,000 soldiers, 500 Apache scouts, 100 Navajo scouts, and thousands of civilian militia men against Geronimo and his 24 warriors. Lt. Charles B. Gatewood and his Apache scouts found Geronimo in Skeleton Canyon in September 1886 and persuaded them to surrender to Miles.