Grand Lake is actually located in four counties of northeast Oklahoma. The lake is accessible from four exits on Interstate 44. The approximate distance from Tulsa OK, is 70 miles and from Joplin MO, about 45 miles. With over 10,000 square miles of watershed encompassing four states, water flows in from a number rivers, streams and estuaries. The Grand Lake Sail and Power Squadron is headquartered in Grove, the largest town on the lake. It is located on Highway 59 approximately 12 miles South of the Afton Exit on the Will Rogers Turnpike (I-44). More information about the Lake, Hotels, Restaurants can be found at the link for the Grand Lake Association, Grove Area Chamber of Commerce and Grand River Dam Authority (GRDA) web site.