I built this walkway last fall using Pennsylvania bluestone. In this image you can see both the true and full-color bluestone. The path is 42″ across and laid dry. There’s a small set of steps in the middle; the very straight line at the bottom of the image is the back edge of the top step. The steps are Tennessee sandstone, but they fit the color palette well. The path is drystone, with no mortar or concrete at all. It leads to the main entrance of a private residence.