The Third Annual Castell Grind event took place earlier this year on April 2. Gravel ‘Grinders’ are long rides on unpaved county and ranch roads, and are increasingly popular around the US. The scenic, flowing, low-traffic back roads of Llano and Mason counties are ideal for gravel events. This year’s event was sold out, with 400 riders registered for 100, 75 and 50 km loops (yes, bike races are often measured in kilometers!) on gravel and sandy roads, passing through both Llano and Mason ...