Not an unheard of situation.

http://www.ctvbc.ctv.ca/servlet/an/local...ishColumbiaHome

Several friends have spent 6+ hours stuck on chairlifts in cold weather waiting for hill staff to rescue them so I have given this some thought.

If you are abandoned after hours then you are on your own and your best bet is probably a PLB as many hills will not have cell service. Your second option may be to attempt self rescue either by lowering yourself if you have a long enough rope or sliding down the cable to the nearest tower which would also require a rope and a lot of nerve.

When resort skiing I usually carry a small pack that rides high so that it does not interfere too much with the back of the chair. In the pack I carry:
- Down coat for upper body warmth
- Emergency bivy that I can put my legs in for a wind break and some warmth
- Large mits that will fit over my ski gloves
- Balaclava for my head
- Foam pad that I can sit on as many chairs have little insulation and a very cold seat.
- Snacks
- 30m of climbing cord, locking carabiners and climbing webbing that I can use if desperate to lower myself to the ground or to a point where a drop my not be so severe.

The plan is to dress warm and wait for the hill staff to rescue you.