“Today’s skeet field varies little from its 1920 beginnings. It has eight shooting stations and two trap houses. Seven of the stations are arranged in a half moon between the two trap houses, and one station is directly between them. The high house, on the left side of the field, throws its targets from a trap 10 feet above the ground. The target rises to a height of 15 feet by the time it travels to the center of the field. The low house target, on the right side, leaves the trap house just 3-1/2 feet from the ground. It also rises to a height of 15 feet by the time it reaches the center of the field.”
For more info, please see http://mynssa.nssa-nsca.org/skeet-basics/