National parks are reopening from coronavirus closures. Here's what to know

Curtis Tate

Many national park sites are at least partially open to visitors as the country rebounds from coronavirus closures. But not all facilities and services are available. 

"In accordance with this guidance and in coordination with governors across the country, the Department of the Interior and the National Park Service are working to reopen the American people’s national parks as rapidly as possible," Interior Secretary David Bernhardt said in a statement.

But before you go, check each park's website for the latest information on what's open and what's not. In each case, it depends on where states are in their reopening plans.

Here are some other considerations, from the National Park Service:

Many states still require out-of-state visitors to quarantine for 14 days, which may make visiting parks in some states more challenging. The National Governors Association offers an up-to-date interactive map that shows what states have a quarantine order.

Postpone challenging hikes. Having to rescue and treat stranded hikers could divert first responders and medical professionals from the pandemic response.

Trash collection and restroom facilities may not be available. Campgrounds are generally closed. 

Stay in groups from your own household and maintain social distance from other groups. Prepare to cover your nose and mouth when other people are around.

Here's what's going on at the 10 most-visited national parks:

Great Smoky Mountains National Park, Tennessee and North Carolina

A view of Newfound Gap at Great Smoky Mountains National Park.

The park is the nation's most visited, with 12.5 million visitors annually. Roads, trails, picnic areas and restrooms are open. Visitors centers, campgrounds and concessions remain closed. Some roads are closed to vehicles but open to hiking and biking.

Grand Canyon National Park, Arizona

A visitor poses for a photo on a ledge off the Grand Canyon's South Rim.

The Grand Canyon is America's second-most visited national park, with 5.97 million annual visitors. The South Rim opened to limited access on May 15. On June 5, the South Rim will be open 24 hours, and the Mather Campground will be open for existing reservations. The North Rim will open for day use on June 5, with the campground closed for construction until July 1. The Colorado River will reopen to recreational use with existing permits beginning June 14. North and South Rim lodging will reopen in phases throughout June.

Rocky Mountain National Park, Colorado

Visitors to Rocky Mountain National Park watch a cow elk graze in an alpine meadow.

Starting June 4, the park will implement a timed, reserved entry system that will last through the summer. Visitors will reserve and pay the entrance fee in advance at and enter the park within a two-hour window between 6 a.m. and 5 p.m. In this phase, 60% of the park's capacity, or 4,800 vehicles and 13,500 visitors a day.

"This system will more safely manage the pace and flow of visitor use, reduce crowding, and provide an improved visitor experience in alignment with the park’s safe operational capacity," said park superintendent Darla Sidles.

Zion National Park, Utah

A hiker climbs down from the Angels Landing summit

The park has been open during daylight hours since May 13. The Zion Canyon Scenic Drive is open to private vehicles until parking capacity is reached, and the last entry is at 6 p.m. The 6-mile road has about 400 parking spots. The park's shuttle operation is suspended. Trails are open to day hiking but not to overnight backpacking. The Zion Lodge is open with limited rooms and amenities.

Yosemite National Park, California

Yosemite Falls is one of the park's most iconic landmarks

The park, which gets 4.4 million visitors annually, is reopening June 11. One big change: For now, visitors must reserve day passes in advance instead of driving up to the park for entry.Visitors can reserve a day-use entry pass at Passes will be validated at the park's entrance gate and can be used for seven days of entry. The person who booked the day pass must be in the vehicle and show a government ID matching the name on the reservation.

Each user can make one reservation per day. The park will only accept credit cards for payment of entrance fees. Overnight camping and lodging will also resume June 11 and those visitors will not need a day reservation. Most retail and food and beverage services will also open by June 15. Visitor center services will be moved outdoors. No shuttle buses will be available this season.

Yellowstone National Park, Idaho, Wyoming and Montana

A river runs through Yellowstone National Park near Grand Prismatic Hot Spring.

The park's Montana entrances opened Monday, as the state lifted its 14-day quarantine requirement. The Wyoming and Idaho entrances are also open. The park is day-use only, with campgrounds, visitors centers and other facilities closed. Limited overnight accommodations will start later in June. The Grand Loop Road is open, except for a segment from Canyon to Tower that's under construction.

Acadia National Park, Maine

Acadia National Park's beautiful Bass Harbor Light near sunset during the Golden Hour.

The park partially reopened Monday, though Maine visitors are under a 14-day quarantine order. The Park Loop Road is now open, along with most nearby restrooms. Hiking trails are open, and trash collection has resumed. The Carriage Roads will open June 5 for pedestrians, but they will remain closed to bicycle and equestrian riders. The Hulls Cove Visitors Center is open with limited outdoor information services from 8:30 a.m. to 4:30 p.m. Campgrounds remain closed and will reopen no earlier than July 1.

Grand Teton National Park, Wyoming

Visitors to Grand Teton National Park hike through Death Canyon, which was carved by glaciers about 15,000 years ago.

The park reopened May 18 for limited recreational use. Primary roads are open, as are hiking trails for day access. Riverbank and lakeshore fishing is permitted, as are limited biking and wildlife tours. Campgrounds, overnight lodging, visitors centers, marinas and food service remain closed. Boating on lakes and rivers is prohibited.

Olympic National Park, Washington

A deer stops to survey the landscape near Hurricane Ridge in Olympic National Park.

The park is partially open to day use recreation. All coastal areas, however, remain closed. That includes beaches, parking areas, trails and facilities. No areas of the park are open to camping. Visitors' centers and ranger stations remain closed. Limited lodging and take-out dining are open.

Glacier National Park, Montana

A snowy sunrise over Lake McDonald in Glacier National Park.

Portions of the west side of the park reopened June 8 for day-use only. The rest of the park will remain closed through June 30 in coordination with the Blackfeet Tribe, which continues to restrict nonessential travel. Lodging, food service and gift shop operations will reopen on June 15. Food service will be limited and take-out only. Guided day hikes will resume on June 12, and guided overnight trips on June 20. But tours remain unavailable, and campgrounds remain closed until further notice.