National Public Lands Day is back! On Sept. 28, the nation’s largest single-day volunteer effort returns. All national parks that charge an entrance fee will offer free admission to everyone in celebration of National Public Lands Day — which occurs every year on the fourth Saturday of September.

National Public Lands Day is Saturday, a day honored by the National Environmental Education Foundation and National Park Service and other federal agencies.

On National Public Lands Day, September 28, access to all public lands is free, and thousands of volunteers will step up to help restore

According to NEEF, it's the nation's largest, single-day volunteer effort for public lands. And the U.S. Army Corps of Engineers has consistently been one of its largest providers of sites and volunteers, the organziation said. It's also a “Fee-Free Day”, meaning entrance fees are waived at national parks and public lands.

But you won't have to wait long for another join-together, help-out happening to pop up in some glorious natural settings: National Public Lands Day, another major volunteer event, is the fourth Saturday in September.

DENVER (KDVR) — The countdown is on to the 31st annual National Public Lands Day. Admission at America’s national parks will be free this upcoming Saturday, Sept. 28. There are four national parks in Colorado: Rocky Mountain, Mesa Verde, Great Sand Dunes and Black Canyon of the Gunnison.

The Calf Creek Recreation Site will reopen Saturday, although visitors may notice some "minor construction activities" over the next few weeks, according to the Bureau of Land Management. That means visitors can access the trailhead to the popular Lower Calf Creek Falls hike, again.

On Saturday, September 28, Nevada State Parks invites everyone to celebrate National Public Lands Day, the nation’s largest single-day volunteer event dedicated to public lands. This annual event offers an opportunity

The 31st annual National Public Lands Day is Saturday, September 28 and brings volunteer opportunities and free admission to the parks.

National Public Lands Day is an annual event and has been the nation's largest single-day volunteer effort, according to the National Parks Service.