Find Your Next Outdoor Escape on Lake Texoma Eisenhower State Park  is a 423-acre outdoor recreation area located northwest of Denison, Texas, on the shores of Lake Texoma—just one hour north of Dallas-Fort Worth. The park offers camping, fishing, swimming, hiking, boating, and OHV trails for visitors seeking a quick escape from city life. Quick Facts: Location:  50 Park Road 20, Denison, TX 75020 (Grayson County) Size:  423.1 acres on Lake Texoma Entry Fee:  $5 per day per p