Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minutePC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11U.S. Route 20 runs about 3,365 miles from Kenmore Square in Boston to Newport, Oregon, crossing 12 states and changing character repeatedly along the way. It is not one uninterrupted signed road: Yellowstone National Park breaks the route between Wyoming and Idaho, so the eastern and western sections must be connected using the park’s internal roads.
That detail matters when planning the drive. Route 20 is part urban arterial, part commercial highway, part prairie road, part mountain route, and part coastal approach. A rushed 10-day run is possible, but two to three weeks gives you enough time for the best scenery, museums, hikes, and small-town stops without turning every day into a fuel-and-lodging exercise.
| # | Preview | Product | Price | |
|---|---|---|---|---|
| 1 |
|
Rand McNally 2024 Deluxe Motor Carriers' Road Atlas: United States, Canada, Mexico | $39.68 | Buy on Amazon |
| 2 |
|
Motor Carriers' Road Atlas 2023 | $25.07 | Buy on Amazon |
| 3 |
|
Motor Carriers' Road Atlas 2024 | $28.47 | Buy on Amazon |
| 4 |
|
Rand McNally Road Atlas 2018: United States, Canada and Mexico | $11.06 | Buy on Amazon |
Route 20 at a glance
| Detail | What to know |
|---|---|
| Eastern terminus | Kenmore Square, Boston, Massachusetts |
| Western terminus | Junction with U.S. 101 in Newport, Oregon |
| Approximate length | 3,365 miles |
| States crossed | Massachusetts, New York, Pennsylvania, Ohio, Indiana, Illinois, Iowa, Nebraska, Wyoming, Montana, Idaho, and Oregon |
| Practical duration | 14–21 days for a balanced trip; 3–4 weeks for extensive sightseeing |
| Major route interruption | Yellowstone National Park |
The 3,365-mile figure comes from an older Federal Highway Administration highway log, so treat it as an accepted approximate total rather than a modern odometer reading. Depending on alignments, business routes, detours, and where you measure, your actual mileage will differ.
How long should the drive take?
A nonstop calculation is not useful here. Traffic around Boston, Chicago, Gary, and Cleveland can consume hours, while western Nebraska, Idaho, Wyoming, and eastern Oregon include long stretches where the next fuel station or motel may be far away. Mountain weather and construction can also change the day’s timetable.
#1 Best Overall
- Durable, laminated pages stand up to stains and liquids, and won’t show signs of normal wear-and-tear
- Tough spiral binding allows the book to lay open easily
- Detailed coverage of state and national designated routes
- Updated restricted routes, low clearance, and weigh station locations
- 22-page mileage directory including more than 40,000 truck-route-specific, city-to-city mileage
- 10–12 days: A fast crossing with relatively few long stops.
- 14–21 days: The best compromise for major attractions and manageable driving days.
- Three to four weeks: The right choice for Yellowstone, Craters of the Moon, Nebraska parks, museums, hikes, and coastal detours.
Traveling westbound puts the finish at the Pacific Ocean, which makes a satisfying endpoint. Eastbound travel ends in Boston’s dense urban environment but may work better for drivers arriving from the Northeast.
Eastbound or westbound: which is better?
Neither direction is universally better. Westbound travelers begin with the most urban and historic sections, then gradually reach the open landscapes of the Great Plains and the Rockies. Eastbound travelers get the major scenery earlier and finish among the Finger Lakes, Lake Erie, and New England’s historic towns.
For a dramatic finale, drive west. For a trip that starts with the more demanding urban navigation and ends with familiar northeastern roads, drive east. In either direction, avoid treating the route as a single GPS instruction. Build it as a series of regional legs.
Best stops from Boston to the Pacific
1. Boston and central Massachusetts
The official eastern terminus is at Kenmore Square, where Commonwealth Avenue, Beacon Street, and Brookline Avenue meet. Kenmore is a busy city intersection rather than a scenic pull-off, so photograph the starting point before leaving the area and expect urban traffic from the beginning.
The Tool Desk
Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Route 20 then crosses the Boston suburbs and central Massachusetts. Useful stops include Worcester, Old Sturbridge Village, and the Berkshires around Lee and Stockbridge. This is a history-and-small-towns section, not a remote driving experience.
Drivers should check current Massachusetts work zones before setting out. Route 20 improvements in Charlton and Oxford reached their final configuration in December 2025, including a new Oxbow Road roundabout that opened to two-way traffic in October 2025.
2. New York’s historic corridor and Finger Lakes
New York supplies a good mix of old highway towns, canal history, and lake-country detours. The most worthwhile diversions include the Erie Canal, Albany-area historic sites, Cooperstown and the National Baseball Hall of Fame, Seneca Falls, Syracuse, and the Finger Lakes.
A 108-mile stretch between Duanesburg and LaFayette is designated as a New York State Scenic Byway. It is a better fit for drivers who want the older, slower Route 20 experience rather than simply covering distance on larger highways.
3. Lake Erie: Pennsylvania and Ohio
Route 20 broadly parallels Lake Erie through northwestern Pennsylvania and northern Ohio. Presque Isle State Park near Erie is an obvious stop, while Ashtabula offers access to Ohio’s lakeshore. Cleveland adds a useful urban break with the Rock & Roll Hall of Fame and a wider range of hotels and restaurants.
Rank #2
- Detailed coverage of state and national designated routes
- Updated restricted routes, low clearance, and weigh station locations
- 22-page mileage directory including more than 40,000 truck-route-specific, city-to-city mileage
- Road construction and conditions hotlines
- Updated coverage of hazardous materials regulations
Further west, Sandusky and Cedar Point can justify a full day if amusement parks are part of the plan. Otherwise, this section is best approached as a transition between the Northeast and the Midwest. Expect suburban development, truck traffic, divided highway sections, and lake-effect weather rather than uninterrupted scenic driving.
4. Indiana Dunes and the Chicago area
Route 20 passes near Indiana Dunes National Park, whose shoreline, dunes, wetlands, prairies, and woodlands provide one of the trip’s best opportunities to stretch your legs. The park has more than 50 miles of trails, but trailheads are not all directly on Route 20. Use the National Park Service map and follow the park’s signs instead of assuming the highway leads to every attraction.
The current private-vehicle pass is $25 and is valid for seven days. Motorcycles pay $20, and an annual Indiana Dunes National Park pass costs $45. These federal park fees are separate from Indiana State Park fees and from the America the Beautiful federal recreation pass system.
Quick wins for a faster PC:
Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →Chicago is a worthwhile detour for food, architecture, museums, and city attractions, but Route 20 itself is not a sightseeing road through the city. Add substantial time for congestion around Chicago, Gary, and the Indiana Toll Road corridor. If you are driving a large RV, towing, or carrying a roof box, urban traffic and parking require extra planning.
5. Illinois, Iowa, and the Mississippi River
West of the Chicago region, the route settles into agricultural landscapes and river towns. Galena, Illinois, is a strong historic stop, while Dubuque, Iowa, offers Mississippi River scenery and the National Mississippi River Museum & Aquarium.
This is one of the quieter scenic sections. Its appeal is historic architecture, farmland, river commerce, and the changing rhythm of Midwestern towns rather than dramatic mountains or coastlines. It is also a good place to schedule a maintenance check, rest day, or laundry stop before the more remote western legs.
6. Nebraska’s Bridges to Buttes Scenic Byway
Nebraska is where Route 20 becomes substantially more scenic. The 197-mile Bridges to Buttes Scenic Byway follows U.S. 20 between Valentine and the Wyoming border, crossing portions of the Sandhills, Pine Ridge, and northern Panhandle.
Free tools Windows power users keep installed
One-click scans. No signup required.
Plan stops at:
- Valentine and the surrounding Sandhills
- Fort Robinson State Park
- Toadstool Geologic Park
- Agate Fossil Beds National Monument
- Chadron and Chadron State Park
- Crawford and the Pine Ridge landscapes
Some attractions require a detour, and services are widely spaced. Start each day with a full tank, do not assume the next small town will have an open restaurant, and keep drinking water and food in the car. Cell service can also be inconsistent.
7. Wyoming: Thermopolis, Cody, and Yellowstone
Route 20 crosses northern Wyoming through the Thermopolis, Basin, and Cody region. Thermopolis’ Hot Springs State Park is a natural stopping point, while Cody is home to the Buffalo Bill Center of the West and provides a useful base before entering Yellowstone through the east side.
Rank #3
- Detailed coverage of state and national designated routes
- Updated restricted routes, low clearance, and weigh station locations
- 22-page mileage directory including more than 40,000 truck-route-specific, city-to-city mileage
- Road construction and conditions hotlines
- Updated coverage of hazardous materials regulations
The route’s most important technical detail comes next: U.S. 20 is not signed continuously through Yellowstone. The eastern section ends at the park’s eastern entrance, and the western section resumes after the park’s West Entrance. You must follow Yellowstone’s internal road network and then reconnect with U.S. 20 outside the park.
Do not rely on a navigation app to solve this automatically. Yellowstone’s roads open and close seasonally, and GPS databases can show roads that are currently unavailable. For 2026, regular-vehicle opening dates listed by the National Park Service range from April 17 to May 22 depending on the road segment, with closing dates commonly in October. Snow, flooding, construction, and other conditions can change those dates.
Before entering, check the National Park Service Park Roads page and road-status map. Choose the entrance and exit you actually intend to use, and allow much more time than the raw mileage suggests. Wildlife, congestion, roadside stops, and low speed limits make Yellowstone a sightseeing day, not a highway bypass.
8. Idaho: lava fields, waterfalls, and high desert
After Yellowstone, Route 20 crosses one of the trip’s most distinctive regions. Island Park, Idaho Falls, Rexburg, Ashton, and Arco make useful overnight or resupply bases. Mesa Falls, Harriman State Park, and the Snake River Greenbelt in Idaho Falls are worthwhile additions.
The main geological highlight is Craters of the Moon National Monument and Preserve, between Arco and Carey. Its black lava flows, cinder cones, fissures, and lava tubes make it feel unlike the prairie and mountain landscapes earlier in the trip. The scenic loop road connects the principal viewpoints and trailheads.
If you enter the lava tubes, obtain the free cave permit at the visitor center. The permit and required gear checks help prevent the spread of bat disease. For navigation, enter the Robert Limbert Visitor Center, 1266 Craters Loop Road, Arco, Idaho 83213 as your destination. Some mapping devices have sent visitors toward unpaved roads near the monument.
The 143-mile Peaks to Craters Scenic Byway links the U.S. 20 area near Challis with Carey. Services are concentrated in Carey, Arco, Mackay, and Challis, so fuel before leaving a town and carry snacks. The route combines mountain scenery, high desert, volcanic terrain, and access to the Lost River region.
9. Oregon: high desert to the Pacific
Oregon gives the trip a final sequence of major landscape changes: Ontario and the eastern high desert, Burns, Bend, the Cascades, the Willamette Valley, and Newport.
Bend is a convenient base for food, lodging, and outdoor activities. Sisters and the Santiam Pass area provide some of the best driving scenery in the state, while Sweet Home and the South Santiam River lead toward the western side of the Cascades. Corvallis is a practical final inland stop before Newport.
Route 20 intersects the McKenzie Pass–Santiam Pass Scenic Byway area and connects with several Cascade scenic-drive corridors. The 66-mile Over the Rivers & Through the Woods Scenic Byway crosses five ecosystems between the Willamette Valley and the West Cascades, ending near the junction of U.S. 20, Oregon 22, and Oregon 126.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
The western terminus is at U.S. 101 in Newport. Continue to Yaquina Bay, Yaquina Head Outstanding Natural Area, and the nearby Oregon Coast beaches after reaching the official endpoint. The coast makes a far better finish than stopping at the highway junction for a quick photograph.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Vehicle preparation for a 3,365-mile drive
Route 20 does not require a specialized vehicle, but it rewards preparation. A conventional passenger car is suitable for the signed highway in normal conditions; remote detours, mountain weather, and unpaved access roads are where vehicle choice matters most.
- Service the car before departure. Check oil, coolant, brake condition, tire tread, tire pressure, battery health, wipers, lights, and the spare tire or tire-repair kit.
- Plan fuel stops in the West. Refill when the tank reaches roughly half full in western Nebraska, Wyoming, Idaho, and eastern Oregon rather than waiting for the warning light.
- Carry practical recovery supplies. Water, food, a flashlight, phone charging equipment, basic first-aid supplies, warm layers, and a paper map are sensible backups.
- Download maps before remote sections. Cellular service is not dependable everywhere, and a dead zone is a poor place to discover that your route depends on live data.
- Check clearance and road surfaces. Do not accept an automatically generated dirt-road shortcut to a national monument or trailhead, especially with a low-clearance car, trailer, or rental vehicle.
- Leave flexibility for weather. Snow, ice, high winds, wildfire smoke, landslides, and construction can make a technically open road a bad choice for the day.
Road-status checks that should be part of the itinerary
| Area | Check before driving |
|---|---|
| Yellowstone | National Park Service Park Roads page and road-status map |
| Oregon | ODOT TripCheck.com for closures, cameras, construction, and conditions |
| Wyoming | WYDOT 511 for delays, work zones, and Route 20 conditions |
| Idaho | Idaho 511 and Idaho Transportation Department project updates |
| Other states | State DOT 511 services, especially before crossing mountain or lake-effect-weather areas |
Oregon deserves particular attention during fire season. Wildfires can produce closures, reduced-speed zones, smoke, and detours. ODOT’s TripCheck service should be checked before departure and again during the trip; do not follow a GPS-recommended shortcut around an active closure without confirming it through the state transportation agency.
How to make the route enjoyable rather than exhausting
- Use the fastest practical roads around major cities, then return to Route 20 for the smaller towns and scenic stretches.
- Reserve Yellowstone lodging and popular park accommodations well ahead of the driving season.
- Keep the daily schedule lighter in Yellowstone, the Cascades, and the Nebraska scenic-byway section.
- Build in at least one maintenance or rest day during a three-week itinerary.
- Separate “official route” mileage from attraction mileage. The best stops often require short detours.
- Keep an offline copy of reservations, maps, emergency numbers, and road-status information.
FAQ
Is U.S. Route 20 the longest road in America?
It is conventionally described as the longest numbered highway in the United States, at about 3,365 miles from Boston to Newport, Oregon. The figure comes from an older highway log, so it should not be treated as an exact modern odometer total.
Recommended Free Tools
Can you drive Route 20 continuously through Yellowstone?
No. U.S. 20 is interrupted inside Yellowstone National Park. Drive the eastern section to the park’s eastern entrance, use Yellowstone’s internal roads, exit through the West Entrance, and reconnect with the western section of Route 20.
How many days do you need for a Route 20 road trip?
Ten to 12 days is a fast crossing. Fourteen to 21 days is more comfortable for the major highlights, while three to four weeks allows time for parks, hikes, museums, and detours.
What is the most scenic part of Route 20?
The strongest scenery is concentrated in western Nebraska’s Bridges to Buttes corridor, the Yellowstone region, Idaho’s volcanic and mountain landscapes, and Oregon’s Cascades. The eastern and central sections are more valuable for history, towns, lakeshore attractions, and river scenery.
The Bottom Line
U.S. Route 20 is best described as America’s longest numbered highway, covering about 3,365 miles from Boston to Newport. It is not a perfectly continuous road, and it is not scenic every mile. Its appeal is the sequence: New England history, the Finger Lakes and Lake Erie, Midwestern river towns, Nebraska’s buttes and prairie, Yellowstone, Idaho’s lava fields, Oregon’s Cascades, and finally the Pacific.
Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minutePlan for two to three weeks, check official road conditions every day, keep the tank topped up in remote country, and treat Yellowstone as a planned park crossing rather than an ordinary stretch of highway.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
