Mosser Lee river gravel is mined from river beds, dried by receding glaciers. Washed clean and tumbled by ancient rivers, these small stones moved down stream from the north. Used by professional gardeners and recommended in many gardening books, Mosser Lee stones and rocks beautify any floral arrangement as well as the drab appearance of potting soil for live plants and in artificial arrangements. Mosser Lee's stones and rocks are uniform in size which allows you to use every stone. The natural beauty of the stones and rocks will remain attractive for years of use.