National Park Service Visiting Yellowstone in Winter U.S. Department of the Interior

ellowstone is a special place, very different Observe wildlife Marvel at the Canyon from your home. Like any grand adventure, your Yellowstone journey will take you to Winter is a wonderful time to view wildlife. All the The Grand Canyon of the Yellowstone River extends Y large mammals present when Yellowstone became a from south of Canyon Village north to Tower impressive new locations and introduce you to new experiences. There are different risks here than you park are here today: grizzly and black bears, wolves, Junction. The most famous and spectacular section, may have faced before. You are responsible for mountain lions, elk, bison, pronghorn, moose, and including the Upper and Lower Falls can be seen your own safety. bighorn sheep. You’ll likely see several species of from the overlooks and trails of the Canyon area. birds, possibly bald eagles. On the road to adventure Pack your patience • Drive cautiously. The park speed limit is 45 mph Keep wildlife wild Traveling can be very stressful and it is easy to get (72 kph), unless posted otherwise. • Animals in Yellowstone are wild and dangerous. overwhelmed. Please use good manners and good • Icy and wet road conditions require extra • Bison, bears, and elk have injured and killed sense. attention. people. For your own safety, keep back and give them space to be wild. • Be prepared for a potential change in plans. • Watch out for wildlife on or near roadways. Allow time for delays due to weather or road • Stay 100 yards (91 m) away from wolves and • Use a road pullout if you need to stop for any conditions. bears. reason. • Keep children close. • Stay 25 yards (23 m) away from all other animals. • Keep the road clear at all times; even when you If the animal moves closer, you must back away. • Observe safe distances and settings for selfies. are watching wildlife. Do not stop a vehicle, stand, or walk in the road. • Store food securely. Backpacks and snowmobile • Stay behind fencing, guard rails, and ledges. gear bags are not secure. Investigate the volcano • Do not feed any animals, even birds and squirrels. Hydrothermal features like , hot springs, , and fumaroles are evidence of ongoing volcanic activity. If you travel the 50 miles between Mammoth Hot Springs and Old Faithful, you will see travertine terraces, acidic thermal features at Norris Basin, mudpots and fumeroles at Fountain Paint Pot, plus beautiful hot springs at Biscuit and Black Sand basins near Old Faithful. Thermal area hazards • Stay on boardwalks and designated trails. The ground is unstable in hydrothermal areas. • Water in geysers and hot springs can severely burn you. Keep hands out. A cow moose forages on willow canes. • Keep litter out of the pools. Do not throw any objects into hydrothermal features. Explore history The park was established in 1872 but people have visited the Yellowstone area for thousands of years. Visit Mammoth Hot Springs to walk the self-guiding trail around Fort Yellowstone. It chronicles the U.S. Army’s role in protecting the park. Other historic sites include the Norris Geyser Basin Museum, and the Old Faithful Historic District. Norris Geyser Basin overlook. Lower falls of the Yellowstone River.

Emergency: 911 • Information: 307-344-7381 • TTY: 307-344-2386 Availability of Facilities and Services Canyon Fishing Mammoth Services Village Bridge West Thumb Hot Springs Old Faithful Madison Medical clinic Year-round, except CLOSED weekends and some = holidays. Mon–Thu 8:30 am–5 pm Fri 8:30 am–1 pm 307-344-7965 Warming hut Canyon Visitor Education 12/15/17–2/28/18 12/15/17–2/28/18 Mammoth Terraces 12/15/17–2/28/18 12/15/17–3/5/18 Warming huts provide Center Lobby Vending machine No food or water 12/15/17–3/15/18 Daytime only. Water and Light snacks and hot drinks shelter for skiers, 12/15/17–3/8/18 snacks, cold drinks available 9 am–5 pm restrooms available. No sold during day. 9 am–3 pm Vending machine snacks, vending. Vending machine, snacks snowshoers, and Vending machine snacks, cold drinks, snowmobile available anytime. snowmobilers. cold drinks. fuel. Restrooms open 24 hours. i Indian Creek 12/15/17–2/28/18 Not staffed, no food or water Fuel 12/15/17–3/15/18 12/15/17–3/15/18 Grant Village Mammoth 12/15/17–3/15/18 Call 406-848-7548 for Credit card fueling Credit card fueling 12/15/17–3/15/18 Year-round Credit card fueling assistance Credit card fueling Credit card fueling E Tower Junction Credit card fueling Supplies and gifts General Store Bear Den Gift Shop Year-round, 9 am–6 pm 12/15/17–3/15/18 Ö Bear Den Ski Shop 12/15/17–3/15/18 Hotel Mammoth Hot Springs Hotel Old Faithful Snow Lodge 12/15/17–3/5/18 12/16/17–3/4/18 W

Dining Terrace Grill Old Faithful Snow Lodge 12/16/17–2/27/18 12/16/17–3/3/18 C General Store Geyser Grill Lunch available late fall 12/15/17–3/15/18 through early spring Campground All year With backcountry permit, primitive only − 12/15/17–3/15/18

Prohibited activities

These activities are dangerous or destructive and • Launching, landing, or operating carry legal penalties, including fines. unmanned aircraft (drones) on lands and waters administered by the • Remaining near or approaching wildlife within any distance that disturbs or displaces the National Park Service. animal. • Smoking in geyser basins, on trails, • Swimming in hot springs. in buildings, or within 25 feet of • Removing or possessing natural or cultural building entrances. resources (such as wildflowers, antlers, rocks, Cellular and data coverage are extremely limited This is only a partial list of regulations. and arrowheads). within the park. For more information, consult 36 Code of • Leaving detachable side mirrors attached when Federal Regulations and the Superintendent's not pulling trailers. Compendium. Cell phone service • Camping outside of designated campsites. Park Tip Line • To report a crime or Cell phone service is very limited in the • Spotlighting wildlife (viewing with lights). criminal activity please call 307-344- park and surrounding areas. General cell • Imitating elk calls or using buglers. Imitating 2132. Leave as much detail as you can. coverage areas are marked on the park map wolf howls. Remain anonymous, or leave a name and number. (back cover). Emergency 911 service by • Tracking wildlife with electronic equipment. cell phone is only available in coverage areas. During peak hours or seasons of heavy visitation, the cellular network may be slow or completely Accessibility Firearms unavailable. As a courtesy to others, please silence your mobile device while enjoying Yellowstone’s A printed guide for visitors who use Know your responsibilities. natural features. wheelchairs is available at all visitor centers Firearms are allowed in national parks ô and on the park website. To arrange for an pursuant to state and federal regulation. Wi-Fi ASL interpreter for NPS ranger-led programs, call They are prohibited in facilities where signs are 307‑344‑2251 at least three weeks in advance. posted, such as visitor centers, government offices, Wi-Fi is available to visitors at the and some concession operations. Discharge of fire- Qualified service animals are welcome throughout Mammoth Hotel restaurant lounge and arms is prohibited. Possession and use of weapons, the park and in all park facilities. However, they the Old Faithful Snow Lodge, for a fee. such as air guns, bows and arrows, spears and must be leashed and under your control at all times. Connectivity is very limited and may not be avail- slingshots, is also prohibited. Details are available at A permit is required for a service animal to enter able at all times. The Horace M. Albright Visitor www.nps.gov/yell/parkmgmt/lawsandpolicies.htm the backcountry due to potential wildlife conflict Center in Mammoth Hot Springs has free wi-fi. and safety issues. In-park reservations: lodging, dining, tours Ranger-led programs

Yellowstone National Park Lodges As one of Yellowstone’s official concession companies, Yellowstone National Park Lodges offers lodging, dining, and a variety of tours and activities. In winter, there are partial or full-day tours by heated snowcoach, skiing, and adventures. Reservations and information are available at park hotels and at: 307-344-7311 Toll free: 866-439-7375 TDD: 307-344-5395 www.YellowstoneNationalParkLodges.com Join a Yellowstone Park Ranger for a snowshoe [email protected] walk, a special talk, or an evening presenta- P.O. Box 165, Yellowstone WY 82190 Tours and shuttles are available on snowcoaches tion about the wildlife or geologic wonders of outfitted for Yellowstone's winter road conditions Yellowstone. Schedules and topics are posted locally at visitor centers. Become a Junior Ranger Albright Visitor Center Located at Mammoth Hot Springs and open year- Children ages 4 and older can round. Open daily 9 am–5 pm. Ph: 307-344-2263 become a Yellowstone Junior unior Old Faithful Visitor Education Center Ranger. Get the Junior Ranger JRANGER Geyser eruption predictions: 307-344-2751 activity book for $3 at a visitor YELLOWSTONE Open daily 9 am–5 pm. Ph: 307-344-2750 center and ask for the free winter supplement. Hike, ski or snow- West Yellowstone Visitor Info. Center a trail, attend a ranger-led The West Yellowstone Chamber of Commerce is program, and complete fun activities in the Junior open weekdays 8 am–5 pm. Ph: 406-646-7701 Ranger book to earn an official Junior Ranger patch. NPS Desk (inside the Chamber of Commerce) Open daily 8 am–4 pm. Ph: 307-344-2876

Ski and snowshoe trails Authorized guides

Brochures with general trail maps and trail descrip- tions can be obtained at visitor centers, ranger stations, and ski shops. One-way or round-trip skier shuttles may be offered to specific trails in the park for a fee. Dress for success Even in Yellowstone’s severe winter temperatures, you can be comfortable and safe if you dress prop- erly to prevent chilling and overheating.

• Wear clothes in several adjustable layers including wind protection and insulated undergarments. Many authorized guides and outfitters are ready to • Avoid clothes that fit too tightly as they restrict show you the wonders of Yellowstone, and each has circulation and increase the possibility of a unique approach. Find authorized guides, tour frostbite. companies, or other commercial services at • Do not wear cotton clothes of any kind, www.nps.gov/yell/planyourvisit/services.htm. including jeans, sweatshirts, underwear, or . They retain moisture and put you at risk for Please report unauthorized operators to a park hypothermia. ranger, or contact Concessions Management at 307-344-2271. Etiquette Yellowstone offers a variety of enjoyable and chal- • Do not walk on snowshoe or ski trails. lenging trails for skiing and snowshoeing. Track is • Snowshoe parallel to the ski track. set on a few trails, others may be groomed, and all unplowed roads and trails are open to skiing and • Yield to faster skiers or those going downhill. Yellowstone Forever Institute snowshoeing. • Detour around wildlife—do not approach. Programs about wildlife, plants, geology, and history are perfect for curious adults and families For detailed information on winter trails, routes, Equipment rental is available in several communi- who want to spend a day or more exploring the and winter safety, contact the Central Backcountry ties around the park; and ski shop services— park with a knowledgeable guide. To find out more, Office or request a Winter Backcountry Trip including lessons, rentals, and repairs—are available call 406-848-2400 or visit Planner (available online or from any visitor center). at the Bear Den ski shops at Mammoth Hot Springs www.Yellowstone.org. and Old Faithful. Climate change challenges Travertine terraces JASON WILMOT The travertine terraces of Mammoth Hot Springs are like living sculptures, shaped by the volume of water, the slope of the ground, and objects in the water’s path. Travertine builds up rapidly here and causes the features to change quickly and constantly.

Limestone, deposited millions of years ago when a vast sea covered this area, provides the first ingredient. A network of fractures and fissures form the "plumbing system" that allows hot water from underground to reach the surface. Hot water The elusive wolverine (Gulo gulo) requires deep Highland Terrace is located on the Upper Terrace with dissolved carbon dioxide makes a solution of snow to build a den for breeding. Decreased Drive, a popular groomed ski and snowshoe trail snowpack may cause declines in the already sparse weak carbonic acid. As the solution rises through above the village of Mammoth Hot Springs. population. the limestone, it dissolves calcium carbonate. At the surface, the calcium carbonate is deposited in the The water which drives the transformation at The National Park Service anticipates that climate form of travertine, which forms the intricate pools Mammoth comes from rain and snow falling on the change will create significant challenges to the and sweeping terraces of Mammoth Hot Springs. surrounding mountains and seeping deep into the preservation of park resources, infrastructure, and earth. Some vents will completely, new vents visitor experience. Are the hot springs drying up? may form, and old vents may reopen. Sometimes the No. These terraces change constantly—sometimes Within Yellowstone specifically, scientists expect water is concentrated in a few springs while at other overnight—but the overall activity of the entire area ecosystem changes due to increased temperatures times it may spread across many outlets. Scientists remains relatively constant. Rangers have heard this and changing rain and snow patterns. Some estimate that, at any given time, only 10 percent of question since the late 1890s, when visitors began observed and expected effects of climate change are: the water in the Mammoth Hot Springs system is on making their second and third trips to Yellowstone. the surface; the other 90 percent is underground. • Average temperatures in the park are higher now Travelers remember the active, colorful springs than they were 50 years ago, especially during shown in their photos and postcards. They usually The features are always changing, but the overall springtime. don’t remember the expanses of bare sinter, which activity of the entire area and the volume of water • In the last 50 years, the growing season has are as common here as in the geyser basins. discharge remain relatively constant. Here, as in few increased by roughly 30 days in some areas of the other places on earth, rock is born before your eyes. park. • Snowpack throughout the area is decreasing and snow is melting faster in the spring. The change How do geysers work? in snowpack levels could impact agriculture and municipal water supplies downstream. by the enormous weight of the overlying rock and • The alpine zone, which currently begins at 9,500 water prevents the water from boiling. feet, may shift higher, decreasing or eliminating species that live in this important habitat. As the hot water rises, steam forms. Bubbling • Increases in insect or disease infestations in trees upward, steam expands as it nears the top of the are likely. Currently, five types of insect pest and water column until the bubbles are too large and one nonnative fungus are attacking regional numerous to pass freely through the constrictions. forests. At a critical point, the confined bubbles actually • Declining wetlands will decrease essential habitat lift the water above, causing the geyser to splash or for frogs, salamanders, and many birds and overflow. This decreases pressure on the system, insects. and violent boiling results. Tremendous amounts of • Grassland animals should be able to find suitable steam force water out of the vent, and the eruption habitat. However, migration patterns may change begins. as vegetation growth begins earlier in spring. • Grizzly bears may have less of some of their most Water is expelled faster than it can enter the geyser’s nutritious foods such as whitebark pine nuts and plumbing system, and the heat and pressure gradu- army cutworm moths. ally decrease. The eruption stops when the water • Native plants may be lost and replaced with reservoir is exhausted or when the system cools. nonnative invasive exotic plants more adapted to earlier, wetter springs, and dryer late-season Fountain-type geysers, like Clepsydra (left), shoot conditions. Clepsydra Geyser water out in various directions from a pool of water. Cone-type geysers, like Old Faithful, erupt The Upper Geyser Basin of Yellowstone National in a concentrated jet of water from inside a rock Park has the largest concentration of geysers in formation. the world. Geysers are hot springs with narrow spaces in their plumbing, usually near the surface. These constrictions prevent water from circulating Will the Yellowstone Volcano erupt freely to the surface where heat would escape. The soon? Another caldera-forming eruption is deepest circulating water can be even hotter than not likely in the next 10,000 years, though it is the surface boiling point (199°F/93°C). theoretically possible. According to 30 years of data, even a small lava flow is not likely in Surrounding pressure also increases with depth, Climate change will probably impact wildlife the next few hundred years. migration patterns. similar to the ocean. Increased pressure exerted Surviving winter's edge Pack mentality

alone or with other bulls—except during the rut, or mating season.

Bison are well-adapted to survive the challenges of Yellowstone winters. Their thick fur and layers of fat keep them insulated in average low tempera- tures of -30°F (-34°C). A bison’s massive hump is comprised of muscles supported by long vertebrae; this allows a bison to use its head as a snowplow in winter, swinging side to side to sweep aside the snow and uncover grasses and sedges underneath. Members of the Lamar Valley pack in 2012. Look for bison near hydrothermal features where underground heat melts the snow and keeps vegeta- Yellowstone National Park is the site of one of the tion green well into winter. most ambitious and controversial wildlife restora- tion projects in the world. The Yellowstone Wolf Project has yielded two decades of discoveries on What is the difference between wolf behavior, predator-prey relationships, wildlife bison and buffalo? disease management, and ecological complexity. In North America, both “bison” and “buffalo” refer to the American bison Bison( The stark white backdrop of snow and the general To conserve energy, bison often travel on plowed or bison). Generally, “buffalo” is used informally; absence of leaf cover make winter an ideal time for groomed park roads in the winter. “bison” is preferred for formal or scientific visitors and researchers alike to observe wildlife. purposes. Early European explorers called From the popular overlooks of Lamar Valley, it is Bison are iconic animals of the American West. this animal by many names. Historians possible to get a glimpse of wolf society. You may With adult males weighing up to 2000 pounds believe that the term “buffalo” grew from the even witness the dangerous dance of predators and (907 kg), the bison is the largest land mammal in French word for beef, boeuf. African buffalo prey as each struggles to survive. North America and is the National Mammal of the (Syncerus caffer)and Asian water buffalo United States. (Bubalus arnee) are not closely related to each The herd is comprised of cows, calves, and some other or to American bison. younger bulls. Mature bulls spend most of the year

Keep your distance

Keep food secure

Do not feed any wildlife, including small mammals and birds. Consuming human food is unhealthy and encourages aggres- sive behavior that may require animals to be destroyed.

All food, trash, and scented items must be kept bear-proof at all times. Tents, truck beds, and Do not approach wildlife picnic tables are not secure. In some areas, ravens • Federal regulations require you to stay at least 100 yards (91m) away from bears and wolves, and at least have learned how to unzip packs and scatter the 25 yards (23 m) away from all other wild animals, such as bison, elk, bighorn sheep, deer, moose, and coyotes. contents. • If an animal moves closer to you, you must move to maintain the appropriate distance. None of these items, even if clean and empty, may • Do not surround, crowd, or disrupt an animal’s path of movement. be left unattended at any time:

• If other visitors put you or wildlife in danger, leave the scene and notify a park ranger. • Water and beverage • Food, including • If bison or other wildlife are on the road, pull as far as possible to the shoulder and give them a chance to containers condiments, even if move off the road. • Cooking or eating in containers utensils • Cosmetics and • Do not follow animals too closely or cause them to run—this wastes energy they need to survive winter. • Stoves and grills toiletries 25 YARDS (23 METERS) 100 YARDS (91 METERS) • Coolers and ice • Pet food and bowls chests • Pails, buckets, and • Trash, bagged or not wash basins ExpEriEncE it today. prEsErvE it for always.

photo BigHorn sHEEp; ann skElton

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MC1702004_WIN17-18_YF_AD.03.indd 1 11/1/17 5:56 PM Partners in Sustainability Free NPS Yellowstone App The National Park Service mission The National Park Service preserves unimpaired the natural and cultural resources and values of the national NPS Yellowstone park system for the enjoyment, education, and inspiration of this and future generations. National Park Discover the stories behind scenery as Our commitment to environmental stewardship you explore Yellowstone. Learn about extends to sustainable operations and facilities. historic places and natural features. Find visitor Yellowstone National Park, park concessioners, and centers, places to stay and eat, and shopping and partners work together to reduce the park’s ecolog- services throughout the park. ical footprint from our operations and the services we provide, preserving natural resources through Features sustainable practices and extending the benefits • Interactive map is easy to use. Use “Locate me” of resource conservation and outdoor recreation to always know where you are. throughout this country and the world. • Discover rich natural and cultural resources with self-guided walking tours. During your time in Yellowstone and beyond, we • Get information about special events and encourage you to do your part by practicing the programs, including links to geyser predictions following: and road construction. • Share a digital postcard with friends and family. Minimize waste and properly dispose of all waste items. Recycling bins are located • Accessibility information for facilities and some trails in the park, audio-described sites, and lthroughout the park for plastic, glass, alternative text for images. metal, paper, cardboard, propane canisters, bear spray, batteries, and more. Download the app media before you arrive. Cell service and Wi-Fi are limited in Yellowstone. We encourage you to stay hydrated during your visit. We also ask visitors to please use a reusable water bottle and fill it up for free at our many water Help reduce water consumption by being Interagency Annual Pass filling locations. All Yellowstone tap water is clean aware of your water use. Turn water and ready to drink. Water in cans or boxes is sold Q off while brushing your teeth, shorten in some stores as an alternative to single-use plastic showers, and participate in towel and linen reuse containers. programs if you are staying in park lodging.

In an effort to reduce harmful emis- This sustainability message is brought to you by sions from idling, turn your vehicle off the Yellowstone Environmental Coordinating while you are parked or stopped for Committee (YECC), a team of National Park more than 30 seconds. Emissions can Service employees, park concessioners, and also be reduced by carpooling and utilizing trans- non-profit partners combining efforts to realize portation services to tour the park. sustainability achievements in Yellowstone National Park. The YECC is comprised of representatives Reduce energy use by turning off lights, from Delaware North Companies, Medcor Inc., America the Beautiful: National Parks and heat, and electrical devices when you National Park Service, Xanterra Parks & Resorts, Federal Recreational Lands Pass leave your rooms. Yellowstone Forever, and Yellowstone Park Service The Interagency Annual Pass is valid at federal Stations. recreation sites, including national parks and wild- life refuges, where entrance fees are charged. You Plan ahead for self-guided tours can purchase it at Yellowstone’s entrance stations, at Yellowstone Forever stores, or visit Visitors interested in guiding a small, 1–3 day, http://store.usgs.gov/pass private (not commercial) snowmobile trip through Yellowstone in winter can apply for permits at The pass is not good for camping or for some other recreation.gov, September 1–30. Applicants must fees such as concessionaire parking fees at Mount be 18 years or older with a valid driver’s license. Rushmore, or cave tours at various parks. Inquire locally. Permit holders are considered non-commercial guides and may lead groups of up to five snowmo- Already paid? biles. All snowmobile operators must be licensed Apply the cost of your Yellowstone entrance fee to drivers at least 16 years old and all group members, the purchase of this pass at Yellowstone Forever including the permit holder, must complete the stores located in visitor centers, at the Bozeman free, online Yellowstone Snowmobile Education Yellowstone International Airport, and Gardiner. Certification course.

Beginning in early November, unclaimed or canceled permits can be obtained with a first-come, Your Fee Dollars at Work first-served reservation throughrecreation.gov . This guide is printed using your fee dollars. Visit the official park website for more information. Thank you for your support. nps.gov/yell/planyourvisit/ncgsap.htm. EXPERIENCE YOUR AMERICA™ Park Roads and Services

To Livingston, MT 52 mi/84 km To Bozeman, MT 84 mi/134 km Gardiner, MT Northeast Entrance To North Entrance Cooke City, MT Bozeman, MT 90 mi/144 km To Big Sky, MT 5 mi/8 km No access 55 mi/ to Billings Mammoth Hot Springs or Cody 18 mi/29 km in winter Tower Slough Creek Pebble Creek Junction  Full service Yellowstone Indian Creek Roosevelt Forever 29 mi/47 km ⁄ Institute Tower Fall 21 mi/34 km 19 mi/31 km

Roaring Mountain Dunraven Pass

Norris Norris Geyser Basin 12 mi/19 km Canyon Village

West Beryl Spring Yellowstone, MT 14 mi/23 km 14 mi/23 km 16 mi/26 km To Idaho Falls, ID West 100 mi/160 km Madison Mud Entrance Volcano Area Fishing Bridge Fountain Paint Pot Lake Village Midway Geyser Basin Bridge Bay Pahaska Sylvan Pass Teepee Biscuit Basin 16 mi/26 km To 27 mi Cody, WY Black Sand Basin 21 mi/34 km Yellowstone 43 km 53 mi/85 km Craig Pass Lake East Old Faithful 17 mi/27 km Avalanche Entrance Upper Geyser Basin Danger

 Full service West Thumb West Thumb Geyser Basin Grant Spring road opening 2018 Village Weather permitting, roads open at 8 am. Call 307-344-2117 or check locally and at go.nps. Plowed roads gov/yellroads for real-time road Lewis Lake 22 mi/35 km Wheeled vehicles only information. Changes and delays Groomed oversnow routes are always possible. Guided tours/permit holders only Open Closed for winter The road between the North and Northeast entrances is open to wheeled vehicles year-round. South Entrance April 20 To Grand Teton National Park To Jackson, WY Mammoth to Old Faithful; 8 mi/13 km 57 mi/91 km Oversnow travel ends in Madison to West Entrance; Norris to Canyon. March 2018  Full service = restrooms, food service, lodging, fuel May 4 Roads close at 9 pm. Clinic General store Warming hut Canyon Junction to Lake; Lake to March 4 vending machines at East Entrance (Sylvan Pass). Mammoth to Norris. Mammoth, Madison, Restrooms Lodging Fishing Bridge, and Canyon May 11 March 6 West thumb to Old faithful; Visitor center Recycling Madison to Norris to Canyon. Camping Lake to South Entrance; Tower or information station March 11 Junction to Tower Fall. Fuel Post office Cell phone tower Canyon to Fishing Bridge to East Connectivity is limited May 25 Entrance. Food service Pay/courtesy Approximate Cell Tower Fall to Canyon Junction March 15 phone Coverage Area (Dunraven Pass); Beartooth All other roads close. Verizon, AT&T (select areas), Highway. Union (select areas).