Acorn Stump Grinding is proud to bring affordable and professional tree stump grinding to St Marys, Kingsland, and the Camden County area. Our stump removal equipment is more maneuverable and not as wide as many other models, meaning we can get to those hard to reach stumps that others can't - we can fit through any gate at least 36 inches wide. Q: What is Stump Grinding? Stump grinding is a fast, effective, and affordable method for removing tree stumps from your yard, without leaving a large hole in the ground or causing any damage.