• Surface Area: 12,000 Acres
Lake Hudson, also known as Markham Ferry Reservoir, is a man-made reservoir in Mayes County, Oklahoma, about 2 miles northwest of Locust Grove, Oklahoma and 8 miles southeast of Pryor, Oklahoma. It was created by the completion of the Robert S. Kerr dam on the Grand River in 1964. It is managed by the Grand River Dam Authority (GRDA).
The lake has a surface area of 12,000 acres, a shoreline of 200 miles, and the average elevation of the surface is 619 feet above sea level. The normal storage capacity is 200,300 acre feet.