Overview
Yellowstone National Park spans roughly 2.2 million acres across northwestern Wyoming and small portions of Montana and Idaho, making it one of the largest national parks in the contiguous United States. Established in 1872, it holds the distinction of being the world's first national park. The park sits atop an active volcanic hotspot that fuels more than 10,000 geothermal features — geysers, hot springs, mud pots, and fumaroles — more than anywhere else on Earth.
The landscape is as varied as it is dramatic: deep river canyons, alpine meadows, dense lodgepole pine forests, and the broad Yellowstone Lake, one of the highest-elevation large lakes in North America. The Yellowstone River cuts through the Grand Canyon of the Yellowstone, revealing brilliant yellow and orange rhyolite walls and twin waterfalls.
Yellowstone is also a functioning ecosystem of unusual completeness. Bison, elk, grizzly bears, black bears, wolves, pronghorn, and moose all live here, making it one of the few places in the lower 48 states where large predator-prey relationships remain largely intact. The park draws around four million visitors annually, so planning and pacing matter enormously.
Before You Go
Entry Requirements and Visas
Yellowstone is located within the United States. Travelers should check TravelerPulse's Visas section and the official US government immigration authority (USCIS / State Department) for current entry requirements specific to their nationality.
Park Passes
Yellowstone charges an entrance fee that varies by vehicle type, motorcycle, and individual entry. A valid America the Beautiful Annual Pass (Interagency Pass) covers entry and may be cost-effective if you plan to visit multiple federal lands. Verify current fee amounts at the official National Park Service (NPS) website before your trip.
Reservations Are Essential
Lodging and campsites inside the park book out months in advance, particularly for July and August. Many campgrounds operate on a reservation system through Recreation.gov; a small number remain first-come, first-served. Check availability well before your planned travel dates.
Seasonal Considerations
- Winter (November–April): Most roads close to standard vehicles. Snowcoach and snowmobile tours operate from mid-December through mid-March. Temperatures can drop far below freezing.
- Spring (May–early June): Unpredictable weather, possible road closures from snow. Newborn wildlife, fewer crowds.
- Summer (late June–August): Peak season with the most amenities available but significant congestion on roads and at popular sites.
- Fall (September–October): Elk rut is a major draw. Cooler temperatures and thinning crowds. Some services begin to close in October.
Health Considerations
Altitude ranges from about 5,300 to over 11,000 feet. Give yourself time to acclimatize if coming from sea level, especially before strenuous hiking. Sun exposure intensifies at elevation — sunscreen and hydration are important year-round.
Getting There
By Air
There is no commercial airport within the park. The most commonly used gateway airports are Jackson Hole Airport (JAC) in Wyoming, approximately 60 miles south of the South Entrance, and Bozeman Yellowstone International Airport (BZN) in Montana, roughly 90 miles north of the North Entrance. Cody Regional Airport (COD) and Idaho Falls Regional Airport (IDA) also serve as gateways. Verify current routes and carriers directly with airlines.
By Car
Most visitors arrive by private vehicle. The park has five entrance gates — North, Northeast, East, South, and West — accessible via US and state highways from surrounding communities including Gardiner, Cooke City, Cody, Jackson, and West Yellowstone. Distances within the park are significant; the Grand Loop Road connecting major attractions is approximately 142 miles.
By Bus or Shuttle
Limited regional bus connections exist from gateway towns such as Bozeman and Jackson. Yellowstone operates an internal shuttle service in summer linking some lodges and visitor areas, but coverage is not comprehensive. Verify schedules and routes through the NPS or local tour operators before relying on this option.
Organized Tours
Multi-day coach and van tours depart from major regional hubs. These can be a practical option for travelers without a vehicle, though they offer less flexibility for independent exploration.
Getting Around
Driving the Grand Loop
The primary way to get around is by car. The Grand Loop Road (roughly figure-eight shaped) connects the major thermal basins, canyon viewpoints, and wildlife-watching areas. Roads can be congested in peak summer, especially around Old Faithful, Canyon Village, and Lamar Valley. Early morning departures — before 8 a.m. — significantly reduce delays.
Bison and Wildlife Jams
Bison frequently walk on or cross roads. It is a federal offense to approach wildlife closer than 25 yards (75 yards for bears and wolves). Wildlife jams are common and unavoidable; build extra time into any itinerary.
Cycling
Bicycling is permitted on all park roads, though traffic, narrow shoulders, and elevation make it physically demanding. Some unpaved roads, such as the Old Gardiner Road, offer lower-traffic cycling. Bicycles are not permitted on backcountry trails.
Seasonal Road Closures
Many roads are closed from November through late April or May. The road between Mammoth Hot Springs and Cooke City (through the Northeast Entrance) is the only road typically kept open year-round. Always check current road conditions on the NPS website before driving.
Where to Stay
Inside the Park
Xanterra Travel Collection manages most of the in-park lodging under NPS concession agreements. Properties range from the historic Old Faithful Inn — a National Historic Landmark and one of the largest log structures in the world — to simpler cabin complexes at locations including Canyon Village, Lake Yellowstone Hotel, Mammoth Hot Springs, and Grant Village. These book out extremely early; check the official Xanterra/Yellowstone lodging site for current availability and pricing.
Camping Inside the Park
The park has multiple campgrounds spread across its five main districts. Sites range from full-service (with hookups) to basic tent-only sites. Recreation.gov handles the majority of reservations. A handful of sites remain first-come, first-served and fill by mid-morning in summer.
Gateway Towns
If in-park accommodation is unavailable or outside your budget, gateway communities offer a range of options. West Yellowstone, Montana (West Entrance) has the highest concentration of motels, vacation rentals, and restaurants. Gardiner, Montana (North Entrance), Cooke City, Montana (Northeast Entrance), Cody, Wyoming, and Jackson, Wyoming also have well-developed visitor infrastructure. Jackson in particular has a broad range of accommodation from budget motels to upscale lodges.
Backcountry Camping
The park has over 300 designated backcountry campsites. A backcountry permit is required and can be reserved in advance (fee applies) or obtained in person the day before your trip. Bear canisters are required in most backcountry zones.
Things to See & Do
Geothermal Areas
Yellowstone's thermal basins are the centerpiece of most visits. The Upper Geyser Basin around Old Faithful contains the densest concentration of geysers in the world. Old Faithful erupts on a roughly predictable schedule — the NPS posts next-eruption estimates at the visitor center. The Grand Prismatic Spring in the Midway Geyser Basin is the park's largest hot spring and one of the most photographed features. Norris Geyser Basin is the hottest and most dynamic thermal area and contains Steamboat Geyser, the world's tallest active geyser. Always stay on boardwalks in thermal areas; ground crust can be dangerously thin.
Wildlife Watching
Lamar Valley in the northeast section of the park is widely regarded as the best wildlife-watching corridor in the lower 48 states. Dawn and dusk are prime viewing times for wolves, bison herds, elk, pronghorn, and occasionally grizzly bears. Hayden Valley, in the central section, is similarly productive for bison, bears, and waterfowl. Bring binoculars or a spotting scope — regulations require you to stay well back from animals.
Grand Canyon of the Yellowstone
Two major waterfalls — the Upper Falls and the more dramatic Lower Falls — drop into a 1,000-foot-deep canyon of vividly colored volcanic rock. Multiple viewpoints are accessible by short walks from Canyon Village. Artist Point offers one of the most recognized panoramas in the park.
Hiking
The park has over 900 miles of maintained trails ranging from easy thermal boardwalks to strenuous backcountry routes. Popular day hikes include:
- Mount Washburn (moderate–strenuous): Summit views and frequent bighorn sheep sightings
- Mystic Falls (easy–moderate): A quiet waterfall trail away from heavy crowds
- Fairy Falls (easy): Leads to one of the park's tallest waterfalls with an aerial view of Grand Prismatic Spring en route
All hikers should carry bear spray, know how to use it, and follow Leave No Trace principles.
Fishing
Yellowstone Lake and the Yellowstone River are known for native Yellowstone cutthroat trout. A separate park fishing permit (distinct from a state license) is required. Some waters are catch-and-release only. Verify current regulations on the NPS site before fishing.
Ranger Programs
The NPS offers free ranger-led walks, talks, and campfire programs throughout the summer season. These are genuinely informative and a worthwhile addition to any itinerary, especially for first-time visitors.
Food & Drink
Inside the Park
Concession-operated restaurants, cafeterias, and snack bars operate at most major visitor nodes — Old Faithful, Canyon Village, Lake Village, Mammoth Hot Springs, and Grant Village — during the main season. The Old Faithful Inn dining room and the Lake Yellowstone Hotel dining room are the most formal options and may require advance reservations in peak season. Expect prices to reflect the remote, high-demand location.
Groceries and Supplies
General stores at several villages sell packaged foods, basic camping provisions, ice, and snacks. These are not comprehensive grocery stores; if you are self-catering or feeding a family economically, stock up in a gateway town before entering the park. West Yellowstone and Jackson have full-service supermarkets.
Gateway Towns
West Yellowstone and Gardiner offer a variety of casual restaurants, diners, and bars suited to the outdoor traveler demographic — burgers, pizza, barbecue, and standard American fare predominate. Jackson has a much broader and more sophisticated restaurant scene if that is a priority.
Alcohol and Drinking Water
Alcohol is available in park restaurants and some stores. Tap water at developed sites is safe to drink. In the backcountry, treat or filter all water from natural sources.
Practical Information
Cell Coverage
Mobile coverage inside the park is extremely limited. Signal exists near Mammoth Hot Springs and patchily in a few other developed areas but is absent across most of the park's interior and backcountry. Download offline maps (NPS app, Gaia GPS, or similar) before entering and carry a physical map.
Fuel
Gas stations operate at Old Faithful, Canyon Village, Fishing Bridge, Mammoth Hot Springs, and Grant Village during the main season. Hours are limited and prices are higher than in gateway towns. Fill your tank when you can.
Emergency Services
The park has ranger stations with emergency response capability. The main park clinic is located near Mammoth Hot Springs; smaller first-aid facilities operate seasonally at other locations. For medical emergencies, call 911. Verify the park's emergency contact number (listed on the NPS Yellowstone website) before your trip, as non-emergency ranger dispatch numbers change.
Accessibility
Many boardwalks, visitor centers, and some viewpoints are wheelchair accessible. The NPS Yellowstone accessibility guide (available on the official site) details specific accessible routes and facilities.
Leave No Trace
Pack out all waste. Feeding any wildlife is illegal and can result in the animal's death. Do not collect rocks, thermal deposits, or plant material. This is a strictly enforced legal requirement, not merely a guideline.
Safety
Wildlife Safety
Yellowstone wildlife — particularly bison, bears, and wolves — is wild and unpredictable. Bison injure more visitors annually than any other animal in the park. Maintain required distances at all times: 25 yards from most wildlife, 75 yards from bears and wolves. Carry bear spray on all hikes and know how to deploy it. Store food, toiletries, and anything with a scent in bear boxes or hard-sided vehicles at all times.
Thermal Features
The ground around hot springs and geysers can be extremely fragile and thin. Stay on designated boardwalks and trails at all times. Water temperatures in many features exceed 200°F (93°C). People have died from entering or falling into thermal pools. Supervise children closely.
Weather Hazards
Thunderstorms develop rapidly, particularly in the afternoon at high elevations. Lightning is a real risk on exposed ridgelines and summits. Carry rain gear, turn back if conditions deteriorate, and start mountain hikes early in the morning. Winter conditions can arrive unexpectedly as early as September.
Road Safety
Wildlife jams cause sudden stops on park roads. Drive the posted speed limits, watch for animals on the road at dawn and dusk, and never stop in the middle of the road — pull fully into a pullout before exiting your vehicle.
Altitude and Sun
Much of the park sits above 7,000 feet. Symptoms of altitude sickness — headache, nausea, fatigue — can affect visitors who ascend quickly from lower elevations. Hydrate well, avoid strenuous exertion on your first day, and descend if symptoms are severe.