A group of volunteer trail builders who have worked on the walking trail and outdoor classroom at Fincastle's Big Spring Park. Benches for the outdoor classroom were recently built and installed. By Matt de Simone   The volunteer trail builders who have spent time over the last year building out the walking trail along Fincastle’s revitalized Big Spring Park continued their work last week. The latest step in the project is preparing the outdoor classroom neighboring Breckinridge Elementary School. On Wednesday, the volunteers worked on the clearing next to the school. Over the weekend, Eagle Scout Carter Baka-Collins from Troop...