i know for a fact because i scanned tickets 2 days at vail last year when we were short that the guns track all of this shit
if you're curious, ask a ticket scanner after they scan your pass to show you the screen...one of the numbers right next to your picture is your number of days this season
im not sure what system WP/Copper/Steamboat use but im sure it's similar
i know we track your stats across ALL vail resorts too, so if you split time between breck, key, and beave they should all still add to your total and appear on the display regardless of which mountain you happen to be at that day