UNDATED (WJON News) -- The Minnesota Department of Natural Resources is making it easier to get out and enjoy Great Outdoors Month.

The DNR is encouraging Minnesotans to discover and connect with parks, recreation areas, outdoor programs, and activities. On Saturday, Minnesota residents can enter all state parks and recreation areas without a parking permit for Free Park Day. Many of the parks will be hosting naturalist-led programs that day for visitors to enjoy.

If you're unable to make it on Free Park Day, seven-day vehicle permits can be checked out at participating libraries. ATV owners will also be able to ride on the state's public trails this weekend without the usual registration fee for the machine. It gives riders access to 3,000 miles of state forest and grant-in-aid trails.

Riders 18 and younger are required to wear helmets, and anyone born after July 1st, 1987 must have completed an ATV safety certification.

The DNR says there are also numerous opportunities to bike, camp, swim, boat, paddle, and fish all across Minnesota.

LOOK: Stunning vintage photos capture the beauty of America's national parks

Today these parks are located throughout the country in 25 states and the U.S. Virgin Islands. The land encompassing them was either purchased or donated, though much of it had been inhabited by native people for thousands of years before the founding of the United States. These areas are protected and revered as educational resources about the natural world, and as spaces for exploration.

Keep scrolling for 50 vintage photos that show the beauty of America's national parks.

Gallery Credit: Alexander Raeburn

LOOK: 25 must-visit hidden gems from across the US

From secret gardens to underground caves, Stacker compiled a list of 25 must-visit hidden gems from across the United States using travel guides, news articles, and company websites.

Gallery Credit: Abby Monteil

TIMELESS: Bestselling Musicians of the ’70s, Then and Now

Using historical Billboard charts and top song and album lists from the 1970s, Stacker spotlighted 25 of the bestselling musicians of the decade.

Gallery Credit: Stacker

More From AM 1240 WJON