I'm a local that gets about 30 ski days per year. Vail is a huge mountain with a great variety of slopes. Every level of skier can find countless slopes to match their abilities. Just trying to hit every lift once in one day is a classic challenge (you need a good game plan and a little luck). With regard to the more difficult terrain: Vail has a huge volume of more difficult to locate tree skiing between and outside of the easy to find slopes. Find really steep stuff front side east of gondola One, trees near chair 10, trees west of chair 11, skier's right of chair 37, skier's left of chair 21 (Rasputin area), out of bounds skier's right of chair 39, out of bounds area called West Vail and out of bounds area called East Vail. Go equipped for the out of bounds, people die there every year. For those that say Vail is for green and blue skiers, they are only revealing their lack of knowledge. Great town, great food, damn good and reliable snow (Utah snow a bit lighter and there is more of it), and an incredible mountain. It does take awhile to find all the cool nooks and crannies.