U.S. Forest Service - Mark Twain National Forest. Mark Twain National Forest is located in the southern half of the state of Missouri, closest to the city of Rolla. About the Willow Springs Ranger District. The Mark Twain has many beautiful rivers, lakes, and streams, offering a number of water activities, including boating and caoeing, and fishing. Sustainable recreation strategy—public input needed ROLLA, Mo. Visitors to the Ava/Cassville/Willow Springs Ranger Districts of the Mark Twain National Forest will enjoy many different landscapes ranging from typical Ozarks oak-hickory forests, shortleaf pine forests, cedar glade openings, breathtaking vistas, and … ... 2/22/2018 STATE: Missouri REGION: Eastern RANGER DISTRICT: Ava/Cassville/Willow Springs ... they are actually loops within the Silver Mines Recreation Area and are described as such in this Guide and the Mark Twain official website. This website offers information and links to Mark Twain National Forest recreation sites and activities around Missouri. Shell Knob Rec Area State Highway YY Shell Knob, MO Phone: (417) 683-4428 (Ava/Cassville/Willow Springs District Office) Closest Towns: Shell Knob, Cassville, Kimberling City, Cape Fair Directions: Shell Knob Rec Area is located approx. The trail offers a number of activity options and is accessible year-round. This website offers information and links to Mark Twain National Forest recreation sites and activities around Missouri. ... 2/22/2018 STATE: Missouri REGION: Eastern RANGER DISTRICT: Ava/Cassville/Willow Springs ... they are actually loops within the Silver Mines Recreation Area and are described as such in this Guide and the Mark Twain official website. 9.1K likes. Mark Twain National Forest Ava - Cassville - Willow Springs Ranger District Cassville Office is situated nearby to Cassville, close to Brock Spring. 1 mile East of MO Hwy 39 on State Hwy … The Mark Twain National forest has a rather unusual history – for it was once known as both the Clark National Forest and the Mark Twain National Forest – both being proclaimed on September 11, 1939. About the Cassville Ranger District. ATV Trails Mark Twain National Forest offers a wide variety of riding experiences for ATV and motorcycle riders. The Mark Twain has many beautiful rivers, lakes, and streams, offering a number of water activities, including boating and caoeing, and fishing. Named after famous author Mark Twain, the Mark Twain National Forest is spread across 3,068,800 acres of land. The forest, which has several sections in Missouri, covers 1.5 million acres, features 14 floatable streams and 16 lakes ranging in size from three acres to 440 acres.