Main Tuolumne Ditch is a canal located in Tuolumne County, California. It appears on the Twain Harte USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 4,081.50 feet (1,244.04 m) above sea level. The nearest populated place is Mi-Wuk Village, approximately 0.7 miles to the SE.