Located in the remote western section of South Mountain Park, this Bursera Trail, also known as the Bees Knees, is a tough steep climb up to a high ridgeline overlooking the Phoenix area. The return trip down the Bursera Trail is a fast and challenging ride on steep and twisty singletrack. The trail can be ridden out-and-back or combined with other trails in South Mountain for a loop ride. The official Bursera trail ends at the junction with the National Trail.