The Lesachtal is the upper part of the Gail Valley. In contrast to the rest of the Gail Valley, the river here has formed a narrow ravine that is up to 200 meters deep. The road runs high above the narrow valley bottom on the northern side of the valley. The Lesachtal is also called the “valley of the 100 mills”. The farmers not only used water power for grinding, but also for plows, elevators, threshing machines and sawmills.