Come join Billings Parks and Recreation and Billings Trailnet to help clean up glass on a section of trail located on Parkland on top of the Rims. We will meet and begin the cleanup near the airport water tower. Volunteers will need to navigate uneven and steep terrain. Please, make sure that you wear protective sun clothing, sunscreen, a hat, and closed toed shoes and bring enough water for a 3 hour period of time in the heat. Volunteers should wear sturdy footwear. Volunteers wearing sandals will not be allowed to participate. Due to the inherent risk of working on the rims, volunteer slots are limited. Online pre-registration is required.