A BASE jumper crashed Saturday afternoon at the bottom of a climbing wall on Independence Pass in Pitkin County, according to rescuers. The jumper landed roughly 200 feet from a parking area on the mountain pass, at the base of the Grotto Wall climbing area, according to a news release from Mountain Rescue Aspen. Rescue officials reported that the BASE jumper landed in difficult, rocky terrain and required assistance to reach the ambulance. The 13-person rescue team built a guided-line system to lower the injured jumper from the rocky area to the ambulance, the news release stated. All Mountain Rescue Aspen personnel were out of the field by 3 p.m. Saturday, agency officials said.