APL is located on Johns Hopkins Road, approximately 1/2 mile west of U.S. Route 29.
There are several visitor entrances.

• Montpelier Rd.: Montpelier Research Park (APL offices), 0.4 miles from Rt. 29.
• Pond Rd.: Credit Union, Kossiakoff Center, and East Campus, 0.6 miles from Rt. 29.
• APL Drive: Main Laboratory Entrance, Parsons Auditorium, 0.8 miles from Rt. 29.
• Building 26 (Warfare Analysis Laboratory): Right turn onto Sanner Rd., second right entrance, West Campus
• Building 23 (Space Integration Test Facility): Right turn onto Sanner Rd., 0.8 miles from Johns Hopkins Road, right turn to building 23, North Campus
  

Directions:

From the Baltimore Area
From Washington DC and the Capital Beltway (I-495)

From Baltimore/Washington International Thurgood Marshall Airport
From Ronald Reagan Washington National Airport
From the Washington Dulles International Airport

From NASA Goddard Space Flight Center

From the Baltimore Area:

1. Take I-95 South toward Washingto DC
2. From the Baltimore Beltway (I-695) intersection go 13 miles and take MD Rt. 32 West (toward Columbia)
3. Go 2.5 miles and take U.S. Rt. 29 South (toward Washington DC)
4. Go 1.5 miles and take exit 15 for Johns Hopkins Rd.
5. Exit onto Johns Hopkins Rd.

From the Washington DC and the Capital Beltway (I-495):

1. Take I-95 North toward Baltimore
2. Go 8 miles and take MD Rt. 216 West (toward Scaggsville)
3. Go 1.2 miles, turn right onto Leishear Rd.
4. Go 0.8 miles, turn left onto Gorman Rd.
5. Go 0.7 miles, cross the traffic circle and bridge over U.S. Rt. 29
6. The road name changes to Johns Hopkins Rd.
7. APL is on the right about a 1/2 mile past Rt. 29

Alternate Washington DC/Capital Beltway Route:

1. From the Capital Beltway (I-495), take I-95 North toward Baltimore
2. Go 10 miles and take MD Rt. 32 West (toward Columbia)
3. Go 2.5 miles and take U.S. Rt. 29 South (toward Washington DC)
4. Go 1.5 miles and take exit 15 for Johns Hopkins Rd.
5. Exit onto Johns Hopkins Rd.

Alternate Washington DC/Capital Beltway Route:

1. From the Capital Beltway (I-495), take U.S. Rt. 29 North (Colesville Rd.)
2. Go 10 miles and follow the signs to exit 15 for Johns Hopkins Rd.
3. Exit onto Johns Hopkins Rd.

From Baltimore/Washington International Thurgood Marshall Airport:

1. Take I-195 West out of the terminal
2. Go 4.5 miles and take exit 4 to I-95 South toward Washington DC
3. Go 10 miles and take MD Rt. 32 West (toward Columbia)
4. Go 2.5 miles and take U.S. Rt. 29 South (toward Washington DC)
5. Go 1.5 miles and take exit 15 for Johns Hopkins Rd.
6. Exit onto Johns Hopkins Rd.

From Ronald Reagan Washington National Airport:

1. Take the George Washington Memorial Pkwy. North
2. Go 16 miles and take the Capital Beltway (I-495) East or North toward Baltimore
3. Go 15 miles and take I-95 North toward Baltimore
4. Go 10 miles and take MD Rt. 32 West (toward Columbia)
5. Go 2.5 miles and take U.S. Rt. 29 South (toward Washington DC)
6. Go 1.5 miles and take exit 15 for Johns Hopkins Rd.
7. Exit onto Johns Hopkins Rd.
   

From Washington Dulles International Airport:

1. Take the Dulles Airport Access Rd. out of the airport
2. Go 12 miles to exit 18 for the Capital Beltway (I-495) East or North toward Baltimore
3. Go 18 miles and take I-95 North toward Baltimore
4. Go 10 miles and take MD Rt. 32 West (toward Columbia)
5. Go 2.5 miles and take U.S. Rt. 29 South (toward Washington DC)
6. Go 1.5 miles and take exit 15 for Johns Hopkins Rd.
7. Exit onto Johns Hopkins Rd.