Terrain, snow, no snowboarders
No base development
Alta is a place you go to for incredible skiing. They are not a family-oriented resort, but they don't claim to be. There is no base village or nightlife, but there is an excellent variety of terrain. If, like me, you go to a place for the quality of the skiing, then you will love Alta.
When the nearby Park City resorts are starving for snow, Alta still manages to have plenty. Also, don't buy the belief that Alta is just for advanced and extreme skiers. They have a great collection of blue runs serviced by high speed lifts, and the Sunnyside lift provides high speed access to long greens at the bottom of the mountain. This means that families can have a great day here without having to ski the blacks. Alta will even groom a couple of blacks for you, which is really nice.
I highly recommend this place to anyone who enjoys quality skiing, especially intermediate and advanced skiers.