Buffalo Soldiers and the Seminole Negro Indian Scouts from nearby forts actively patrolled the beautiful Frio River canyonlands in the late 1800s. These troopers took on patrols through the rugged Balcones Escarpment, protecting settlers from raids and working to secure vital pathways and water sources in this challenging country. When you're swimming the cool Frio River or dancing under the stars at Garner, remember the soldiers whose courage helped bring peace to these canyons.