For marketing purposes. When you are looking through a magazine or through a web site that details specifications of a ski area, the management of the ski area will attempt to tweak the percentages of runs to what type of customer they are trying to attract.You mentioned A-Basin… Perfect example. The area is one big granite cliff. Almost all black and double black diamond trails. Now there are plenty of skiers/riders who have a blast there, but typically they are locals, ski bums, or individuals. Needless to say, when you take that demographic and compare it to families, groups, and adventure seeking tourists, you can guess which one have the most money to spend. The second group of course. For that reason, the management at A-basin (and other comparable mountains like Crested Butte, Jackson Hole, Alyeska, etc…) tweaks their maps to attra
