Data Disclaimer: Water level data is provided by USGS and NOAA for informational purposes only. Verify conditions on-site before any water activities.
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**Access Overview**
Route BB offers a single-lane boat ramp in Greenlawn on Mark Twain Lake. This is a **campground-exclusive facility** available only to registered campers, so plan accordingly if you're launching here. The ramp does not have a lighted parking area, making it best suited for daytime use. There are no horsepower or length restrictions on the lake, accommodating vessels of various sizes.
**What to Expect**
Mark Twain Lake provides a blend of natural scenery and modern recreational facilities across three campgrounds with shaded campsites and full hookups. The lake supports diverse paddling and boating activities. If you're not camping at the facility, consider nearby public access points such as the John F. Spalding Boat Ramp or M.W. Boudreaux Recreation Area. Contact the U.S. Army Corps of Engineers St. Louis District at 573-565-2233 for current conditions, camping reservations, and detailed facility information.