West of Tulsa and Stillwater, the Lake McMurtry area has singletrack mountain bike trail network totaling 27 miles. Trails are well marked and not too steep, with lots of long sloping switch-backs on the banks of the lake. Bring bug-spray if going between April and September. Trails are not used much in summer months; a good idea to go in pairs.
To reach the mountain biking trailhead from US35, use exit 174. Head east on SR51 for 10 miles to Redlands Road. Turn north on Redlands Road for 3 miles until it ends in a T-intersection. Turn left (west) for less than a mile then turn into the park at the large Lake McMurtry sign. (If you end up Camp Redlands you have gone too far) After mile or so on a winding road you will come to an intersection, turn right. A stop sign occurs soon, the west side Ranger Station (store) is directly across from the stop sign. Follow the signs to the parking area at the boat ramp and the race start.
Overall, Lake McMurtry is the 4th most popular mountain bike trail of all 9 mountain biking rides in Oklahoma.