Rock is a cheap and beautiful material, though time consuming. When you have more energy and time than money, this may be the perfect option.It's also great for swales and retaining walls.
Rock is a great material to work with. It’s cheap – especially when you live rurally where you can pick it off the ground – and easy to use. It’s also strong and natural, the earth’s building blocks. The downside is that it’s fairly labor intensive and slow, compared to other building methods.