Black Warm Up Boulder South

Black Warm Up Boulder South is a natural outdoor bouldering feature located along the Kraft Mountain Loop in the Calico Basin sector outside Las Vegas. Serving as an essential starting point for sessions in the Red Rock area, this sandstone block provides reliable warm-up circuits, technical footwork practice, and varied low-to-moderate problems. The surface consists of textured Aztec sandstone, featuring a mix of varnished crimps, slopers, and positive edges. The boulder operates as open public recreation on natural terrain, requiring no formal booking or court fees. Climbers gather here during early mornings and cooler months to session boulder problems before moving deeper into the canyon. Because the site sits entirely outdoors in a sensitive desert environment, visitors are expected to follow Leave No Trace principles, avoid climbing on wet sandstone, and manage their own risk in the field.