Scotland is home to some of the most amazing and important geology in the world. And there is no need to trek miles across desert sands and rappel down steep cliffs to see it. Many of Scotland's most significant geological sites can be seen along its major highways-if you know where to look and understand what you are looking at. Rocks on Wheels to the rescue! RXoW takes you to thirty-six road or path accessible sites (stops) on six different excursions (trips) and explains the geology you see there so nongeologists can understand it. RXoW brings Scotland's rocks to life! This is no small feat considering that many of them are billions of years old.