(NewsNation) — Thousands of volunteers are taking care of sacred grounds and cleaning headstones at national cemeteries this weekend ahead of Patriot Day, which commemorates those who died in 9/11.

It’s all a part of Carry The Load and the National Cemetery Administration’s National Day of Service and Remembrance, set to take place at more than 60 national cemeteries across the country.

Carry The Load, a nonprofit founded in 2011 by two veteran U.S. Navy SEALS, aims to provide an “active way” to connect Americans to the military, veterans, first responders and their families, according to its website.

View the story here.