Many of Guam’s main roads have both a route number, such as Route 1, and a road name, such as Marine Corps Drive. Directions and guidebooks tend to use the number, while map apps and street addresses show the name. This guide pairs the two for the roads visitors drive most, so you can tell at a glance when they mean the same road.
- Route 1 is Marine Corps Drive. It is Guam’s main north–south road along the west side of the island, through Hagåtña, Tamuning and Dededo. Until 2004 it was called Marine Drive, and some people still use that name.
- Tumon’s hotel strip is on Route 14. The hotel-lined section is named Pale San Vitores Road.
- Route 10A goes to the airport. Its name is Chalan Pasaheru, and the airport’s street address is 355 Chalan Pasaheru, Route 10A.
- A loop of the south uses Routes 2A, 2 and 4. Take Route 2A and Route 2 down the southwest coast to Umatac, then Route 4 around the south and up the east side.
- Distances and speed limits are in miles. One mile is about 1.6 km, and speed-limit signs are in mph.
Information checked on November 2, 2026.
Where does Route 1 (Marine Corps Drive) go?
Route 1 runs along the west side of Guam from Santa Rita, near Naval Base Guam, in the southwest to Yigo, near Andersen Air Force Base, in the northeast. On the way it passes through Piti, Asan, Hagåtña, Tamuning and Dededo.
The stretch most visitors use runs from Hagåtña through Tamuning to the Micronesia Mall area. It is lined with shops and offices, so watch for cars pulling in and out and turning across your lane.
South of Hagåtña, Route 1 follows the coast past Asan and Piti. For Agat and Umatac, turn onto Route 2A in Santa Rita and continue onto Route 2.
Guam’s main roads: route numbers and names
The table lists the routes visitors are most likely to use, in number order. Names are those set in Guam law or shown in map apps; signs and apps can label some sections differently, so check your map before you set off.
| Route | Name | Runs between | Use it for |
|---|---|---|---|
| 1 | Marine Corps Drive | Santa Rita – Piti – Asan – Hagåtña – Tamuning – Dededo – Yigo | The main road north and south along the west side |
| 2 | Chalan Chamorro | Santa Rita – Agat – Umatac | The southwest coast |
| 4 | Chalan Chamorro | Umatac – Merizo – Inarajan – Talofofo – Yona – Hagåtña | The south and east coast, rejoining Route 1 in Hagåtña |
| 8 | Purple Heart Memorial Highway | Route 1 in Hagåtña – Barrigada (junction with Routes 10 and 16) | Heading inland to central Guam |
| 10A | Chalan Pasaheru | Route 1 in Tamuning – the airport | The airport |
| 14 | Chalan San Antonio, then Pale San Vitores Road | Route 1 in Tamuning – the Tumon hotel strip | Tumon hotels, beaches and shops |
| 16 | Army Drive | Route 8 in Barrigada – Route 1 near Micronesia Mall | Heading north from the airport area |
| 17 | Cross Island Road | Santa Rita – Yona | Crossing the south of the island east to west |
Guam law names Routes 2, 2A and 4 together as “Chalan Chamorro”. Map apps may show other names for some sections.
Why does the same road have different names?
The route number stays the same from end to end, but the name can change from one section to the next. When the name on your screen does not match the number in your directions, use the table to connect them.
- Route 14 is Chalan San Antonio where it leaves Route 1, and becomes Pale San Vitores Road at the roundabout with the statue of Padre San Vitores. Short connector roads along the strip lead back to Route 1.
- Route 1 is officially Marine Corps Drive and shows as “Marine Corps Dr” in map apps. It was renamed in 2004; before that it was Marine Drive, the name you will still hear and see in older guides.
- Routes 2 and 4 carry the legal name Chalan Chamorro, but most people simply say Route 2 and Route 4.
Route numbers appear as “Route 1” or “Highway 1”, and government documents also use “GH” (Guam Highway), as in GH-1. “Chalan”, which starts many road names, is the CHamoru (Chamorro) word for road.
Reading Guam addresses and using a map app
Guam addresses follow the US pattern of street number, road name and village. The airport, for example, is at 355 Chalan Pasaheru, Route 10A, Tamuning. Not every street number is in every map app, though, so if an address does not bring up the right place, search for the hotel, beach or business by name instead.
Map apps tend to show road names more prominently than route numbers, and directions are read out by name (“turn right onto Marine Corps Dr”). Keep the table handy to match the two.
Road signs use miles and speed limits are in mph. The Google Maps app lets you switch the distance unit to kilometers in its settings, though the menu location varies by phone and app version, and the road signs stay in miles. For speed limits and the other rules of the road, see our Guam driving guide.
Which route do you take from Tumon?
These are typical routes from the Tumon hotel area. Roadworks, crashes and traffic can change the best way, so check your map app before you leave.
| Going to | Route from Tumon | More detail |
|---|---|---|
| The airport | Route 14 to Route 1 south, then Route 10A east | — |
| Hagåtña (Plaza de España, Paseo de Susana) | Route 14 to Route 1 south | — |
| The southern loop | Route 1 south through Hagåtña, Asan and Piti, Route 2A in Santa Rita, Route 2 to Umatac, then Route 4 around the south and up the east coast to Route 1 in Hagåtña | Southern Guam driving guide |
| Two Lovers Point | Route 1 north, then follow the signs for Two Lovers Point near Micronesia Mall | Northern Guam driving guide |
| Micronesia Mall | Route 1 north, near the junction with Route 16 | — |
| The east side (Yona, Talofofo) | Route 1 south, then Route 4 from Hagåtña | Scenic driving routes |
The southern loop works in either direction. Route 17 is a shortcut between the east and west sides of the south, but it is steep and winding in places, so drive it in daylight until you know the car.
FAQ
Is Route 1 the same as Marine Corps Drive?
Yes. Marine Corps Drive is the name of Route 1, shown as “Marine Corps Dr” in map apps. If someone says Marine Drive, they mean the same road: that was its name until 2004.
What road are the Tumon hotels on?
Route 14. The hotel-lined section is named Pale San Vitores Road, and that is the name your map app shows. Enter your hotel’s name as the destination so you reach the right entrance.
Does Guam use miles or kilometers?
Miles. Road signs show miles and speed limits are in mph; one mile is about 1.6 km. You can set the Google Maps app to kilometers, but the signs stay in miles.
Do I need a GPS in my rental car?
A map app on your phone will do. Set your destination before you start. Guam law bars drivers from holding or using a phone while driving, including while stopped at a light, with exceptions only for hands-free calls and emergency calls. If you need to use the phone, pull over somewhere safe first.
Plan your drive
Four roads are worth remembering: Route 1 is Marine Corps Drive, Route 14 is the Tumon hotel strip, Route 10A goes to the airport, and Routes 2A, 2 and 4 make the southern loop.
TAICO Rent-A-Car GUAM is open 24 hours a day, every day of the year, with free pickup and drop-off for listed hotels in Tumon. Once your dates are set, check available cars and rates.
