Steve mentioned dressing for cold weather. Even when the low temperature will likely be a mild 40 degrees or so at 5 Mile Meadow, that can be quite a shock when you have become accustomed to highs above 100. Bring all the warm clothes you have, and for some tips on dressing for cold weather, read the definitive post on the subject by Tony Muller on this mailing list: http://www.freelists.org/archives/az-observing/12-2002/msg00122.html Tom -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.