National Public Lands Day (NPLD), held annually on the fourth Saturday of September, is the nation’s largest, single-day volunteer event for public lands. The first National Public Lands Day was in 1994. It started as a volunteer effort to improve and help maintain federally owned land in the United States. Today, it brings together hundreds of thousands of individual and organizational volunteers to help restore America’s public lands. This year is the 25-year anniversary of National Public Lands Day as well as the 50-year anniversary of the National Trails System and National Wild & Scenic Rivers System. It’s a big…