Oak Mountain was created when the State Land Act of 1927 granted the park the between Double Oak Mountain and Little Oak Ridge. From 1934 to 1941, the park saw improvements made by the Civilian Conservation Corps and the Works Progress Administration. Remnants of the CCC era—foundations, bridges and other infrastructure, often made of stone quarried from within the park—can be seen throughout the park. In 1943, the National Park Service deeded the state park approximately of surrounding land that the NPS had acquired in the 1930s. Further improvements beginning in 1971 saw development of the golf course, pro shop, cottages, administrative buildings, demonstration farm and campgrounds in the area of Dry Brook basin and adjacent to the park's lakes.
Activities and amenities
Beach/Day-Use Area - Double Oak Lake has shaded picnic areas, covered pavilions for rent, a beach for public swimming, volleyball courts, and paddle boat rentals. Fishing - Oak Mountain Fishing Center is located at the north end of the park at the "Back Gate." The park has three fishing lakes, totaling, stocked with largemouth bass, bream, catfish and crappie. The park sells bait and rents flat-bottomed fishing boats. The park has facilities for launching private boats and allows the use of electric trolling motors. Fishing licenses are required and are available at the park. Hiking - The park has of hiking trails that range from easy to moderate in difficulty. The Treetop Nature Trail is an elevated boardwalk where owls, turkey vultures, and other non-releaseable birds housed in large cages may be viewed. Camping - The park's campground has 85 improved and 60 primitive campsites. Backcountry camping is also available. Horseback Riding and Equestrian Camping - The Orange Trail is dedicated to equestrian use, with foot and bike traffic unpermitted. The park offers guided horseback rides as well. A 12-site equestrian campground was opened in 2011. Golf - The park's 18-hole, par 72, public golf course was designed by Earl Stone and has been rated in the top 50-75 public golf courses by Golf Digest magazine. Course amenities include Bermuda greens and tees, pro shop, snack bar, driving range, chipping green, and practice green.
Course statistics:
* Blue course: 6842 yards, USGA rating 71.7, slope 120
* White course: 6341 yards, USGA rating 69.5, slope 116
* Water on 9 of 18 holes, tree-lined fairways
* 6 holes dogleg left, and 7 holes dogleg right
* Course record : 64, scored April 17, 1978
* Toughest hole: #9, 382 yards, par 4
* Easiest hole: #17, 141 yards, par 3
Hunting - Because of the abundance of deer in the park, permits are issued during certain times of the year to allow bow-hunters to take deer within park boundaries. Mountain Biking - In 2010, the International Mountain Bicycling Association named the park's mountain biking trail system to its Epic Trail list of 52 trails worldwide.
The Red Trail is the park's, purpose-built mountain biking trail. It features 2200 total feet of climbing, one large climb, fast downhills and technical features for all levels of riding. There is no night riding allowed except for designated nights during the winter. The signature area of the trail is Blood Rock, a very rocky descent crossing a small water spring.
A pump track was constructed in 2012 that includes a designated, kid-friendly, beginner area as well as a large-scale track with beginner, intermediate and advanced lines. The pump track is located at the end of Tranquility Road near the BMX Track.
Facilities to wash bikes and a change room are located at the south trailhead in the day-use area. Riders are strongly recommended to wear helmets and yield the trail to pedestrian traffic.
The Red Trail and pump track are maintained by the local volunteer group, the Birmingham Urban Mountain Pedalers.
Oak Mountain BMX Track - The track first opened in 1979 and is now at its third location. The track offers year-round racing and daily riding sessions. Alabama Wildlife Center - The Alabama Wildlife Center is the oldest and largest wildlife rehabilitation and education center in the state. The center treats injured or orphaned native Alabama birds from over 100 different species, receiving almost 2,000 avian patients each year. Oak Mountain Interpretive Center - Oak Mountain Interpretive Center encompasses of natural history exhibits, a meeting room and teaching lab. Live displays include native species of snakes, fish, turtles, and salamanders, and other exhibits explain the area's geography and geology. The facility is a joint venture among Oak Mountain State Park, Samford University, and Shelby County. As of November 2015, a fee of $2–$5 was charged to enter the park.