Indianhead Mountain The area is best known for downhill alpine skiing. Indianhead itself only offers downhill alpine skiing. Indianhead features runs from very easy greens through double diamond. Over 95% of the hill is groomed, and although there is no official tree skiing, adventurous skiers manage it anyway. There are 10 Beginner Green runs (the largest, Voyagers Highway is in itself the size of many Midwest ski areas), seven More Difficult Blue runs, seven Most difficult Black runs, and four Expert Double Diamond runs primarily because of moguls. The facilities normally found at the hill base are on top of the hill
Colour centre the recognition of shapes, motion, and colour. V1 has multiple areas that are colour-sensitive, which indicates that colour processing is not limited to one area. According to a paper by Dr Robert Shapley, V1 has an important role in colour perception. fMRI experimental results showed that V1 has two kinds of colour sensitive neurons: single-opponent and double-opponent cells. These cells are integral in the opponent process of interpreting colour signals. Single-opponent neurons respond to large areas of colour. This is advantageous for recognizing large colour scenes and atmospheres. In comparison, double opponent cells respond to patterns, textures, and colour boundaries.