Ya, well, unfortunately, Berthoud Pass has closed their lifts down.  They are now only snow cat service.  Cool place it was.  But now we have Silverton which should be a SICK place for backcountry lift accessible terrain.  But ya gotta have a probe, shovel, and transceiver.  As for when CO is open and stuff.  I'm hopin to make it to first day @ loveland which should be middle of october.  You can typically ski A-Basin up until mid june - early july.
Hope this helps
charles parks / jibbing.com
AIM : CharlezP
charles@jibbing.com
'Clams have feelings too!' -NOFX