Stretching from the Gulf of Mexico to the St. Johns River, the Marjorie Harris Carr Cross Florida Greenway occupies much of the land formerly known as the Cross Florida Barge Canal. This 110-mile corridor encompasses a variety of natural habitats and offers an array of trails and recreation areas where visitors can experience Florida's premier greenway.

This segment of the Cross Florida Greenway is dominated by longleaf pine sandhill and sand pine scrub natural communities. The area is also site of an historic "digging." Remnants of the Ship Canal project, these features are wide linear areas that were literally carved out of the landscape in 1935, utilizing mostly manual labor in this depression-era project. Today, they exist as reforested, small-scale valleys. Because the bottoms of "diggings" are comprised of clayey soils that hold moisture, they are dominated by loblolly pines that prefer wetter areas than longleaf or sand pines. In many areas, they also offer challenging terrain for trail goers.