Mineral Basin http://www.snowbird.com/imagelib/tra...ap_mineral.pdf
Bird Maps http://www.snowbird.com/imagelib/tra...p_snowbird.pdf
I'll chime-in until Mag offers his two pennies. I ride the east regularly. I'll be at Blue Mtn, PA on Wednesday and I get to Vermont/NH/UpState NY about 6 times a year. Snowbird and the Catskills (Hunter) are not related in any sense. But, there is a reason you are heading to Utah, right, to get out of the Catskill scene.
When Riding at the Bird look to ride in two particular ares Mineral Basin and the Gad Valley. These are big (wide and doable) open runs that are accessed by the tram. After you get off the tram, walk past the warming hut towards where the other lifts are topping-off. Take that traverse run and Mineral Basin will be on your left. Gad Valley/Little Cloud will be on your Right. Drop into Mineral Basin by using runs like BluebyYou, Lone Star, and Big Dipper. You could even follow the little traverse run of Path to Paradise to Junior's Paradise. Once you got to the bottom of the Basin, catch the Baldy Express and take the greens back down.....they are fun open roller trails. Stay to riders left and you'll have a blast. You'll even get the opportunity to see the fat grumpy big sister of Snowbird.....Alta. Tell we all said to eff-off. Soon you'll be ballsy and start looking for the next best line as you ride the lifts back up. Once you exhaust your interest in Mineral Basin (the lifts back here are high-speed and you can get many runs, quickly) go to the top of the Mineral Basin Express, wander across the other side of the ridge, and drop-in where the double chair (Little CLoud) is unloading people. Runs like Road to Provo, Regulator Johnson, Shireen, and Last Choice are all yummy. Watch-out, there are unexpected chutes and drops here, but you will be able to go to the left or right of them as you approach them. If it looks too nasty, it probably is....look for an easier way down, it won't be hard to find.
These ares are wide open, particularly Mineral Basin. You should do very well in this area. Be careful, there is a tight Chute that runs directly below the Mineral Basin lift, towards the bottom. If you want a comparison, think of Double DIpper/Cascade in Killington only much much wider and much much longer. Also, think of it like this......I'm not sure if you've ever been to Placid, but I be willing to bet you've never been there when the Slides are open! (Me Neither) Think of Utah as the Slides finally being open only a hell of a lot bigger!
Don't Psych yourself out. Go balls out, have a blast, just ride safe and you'll be fine. I assume you have somebody(s) to ride with. I'm jealous, brother....very jealous. You'll come back all snobby about the east coast snow!