If there is a Serious injury, call 911 for Search and Rescue. Say you are closest to town of Hope so Hope's S & R gets called out. Say your location is at Britton Creek Exit #228. Best to say you can't get injured sledder off mountain so S & R shows up with Snowmobiles.
For additional help and support, contact someone on Emergency Contact list posted in cabins so CoqSnow members can assist you or assist Search and Rescue, especially in the case of finding missing sledders. We also have emergency equipment that could be utilized.