as long as it isn't super smooth like pea gravel, it can interlock to create a compacted, stable surface. Generally, you should pick gravel between 3/8 and 3/4 inches in diameter, although you ...

Southwark Council/Veolia The Roman road contains layers of compacted gravel sealed by two layers of chalk, and another layer of compacted sand and gravel The road was identified by a team of ...