When is gravel and stone bad for your health? Posted by admin October 21, 2021contact From left, an artist’s rendering of what the stone of a hilltop terrace will look like when it’s washed away in the next few weeks, and a rendering of how the gravel and sand would be used for landscaping. Post navigation Previous: What you need to know about the Super Bowl and its halftime showNext: What is a pea and why is it so popular?