National Public Lands Day — Join us on the ALT for National Public Lands Day…

“National Public Lands Day is traditionally the nation's largest single-day volunteer effort. It celebrates the connection between people and green space in their community, inspires environmental stewardship, and encourages use of open space for education, recreation, and health benefits.”
Source: https://www.nps.gov/subjects/npscelebrates/public-lands-day.htm