There are two main types of dark gravel. The most common is Black Star Gravel which is freighted in by truck or rail from far West Texas. The pit has a limited supply and only allows a specific number of loads out each day. We are allocated two loads per week at a maximum. This pushes the price up and makes availability an issue. The other gravel is named “Jones Mill” and is similar but has a lighter grey color. It does not retain it’s black color when dry. It is often sold as Black Star because it tends to be more available. We only stock Black Star Gravel and will never mix in or order “Jones Mill” to make sure our product is consistent and the highest quality.