How to get here by car

From the South or from the East

From Manhattan

If you're coming from Columbia University, go north to 125th Street, turn left (west), and follow signs to the Henry Hudson Parkway going north. From anywhere else in Manhattan, get on the West Side Highway (if you're south of 57th Street) or take Riverside Drive to the first available entrance to the Henry Hudson (if you're north of 57th Street) and go north.

No matter how you get there, stay on the Henry Hudson - do not cross the George Washington Bridge. A few miles north of the GW Bridge, you'll come to the Henry Hudson Bridge. Cross that bridge and follow the signs to the Saw Mill River Parkway going north. Once you're on the Saw Mill, follow the directions below.

From La Guardia Airport

Take the Grand Central Parkway west to the Triboro Bridge (about 2 or 3 miles, you will see Manhattan on your left side). Immediately after the Triboro Bridge, take the Major Deegan Expressway (87) and stay on it for about 7 or 8 miles, until you see a turn off for the Moshulu Parkway. Take this exit, which leads on to the Saw Mill River Parkway (northbound). Follow the directions below.

From Kennedy Airport

Take the Van Wyck Expressway 678 north about eight miles and follow the signs to the Whitestone Bridge. Cross the bridge and get on the Hutchinson River Parkway going north. After about eight miles get off at the entrance to the Cross County Parkway. Drive about four miles to the other side of Westchester, then take the Saw Mill River Parkway north. Follow the directions below.

From Long Island

Take any major Long Island highway westbound to the Cross Island Parkway (or the Belt Parkway). Take the Belt Parkway north/east, following the signs to 678 north and the Whitestone Bridge. Cross the bridge and get on the Hutchinson River Parkway going north. Get off at the entrance to the Cross County Parkway and drive west to the other side of Westchester, then take the Saw Mill River Parkway north. Follow the directions below.

Once you're on the Saw Mill River Parkway going north...

Get off at Exit 17, Ardsley/Ashford. At the end of the exit ramp, turn left onto Ashford Avenue. Drive for about a mile until you come to the intersection with Broadway (Route 9), then turn right (onto Broadway, going north). Go through one traffic light, then look carefully on the left-hand side. After about half a mile you'll see a small white sign with blue lettering that reads "Columbia University Nevis Labs." Be careful not to turn into Ardsley Ave, the road immediately before the Nevis driveway. Turn left into the driveway marked by the sign and drive to the Nevis parking lot. The main building will be right in front of you.

From the North or from the West

From Newark Airport

Follow the signs to 78 west and take the local lanes. After roughly four miles take the exit for the Garden State Parkway north. Drive north about 30 miles to end of the GSP. You want to get on the New York State Thruway east - get in the left-hand lane, but take the right-hand fork. Once you're on the NYS Thruway for about six miles, you will cross the Tappan Zee Bridge. Get off at Exit 9, which is on the right immediately after the bridge toll. Turn left at the end of the exit ramp onto Route 9 south. Follow the directions below.

From New Jersey

Your best best is to get on the Garden State Parkway and follow the directions in the previous paragraph. If you're in the northwestern part of New Jersey, you can take 80 east to 287 north to the New York State Thruway east.

From New England

Take 95 south to 287 west. After you cross Westchester, 287 will merge with 87 and become the NYS Thruway. Get off at Exit 9 (the last exit before the Tappan Zee Bridge). Turn left at the exit ramp onto Route 119. Turn left at the next traffic light onto Route 9 south (Broadway). Follow the directions below.

Once you're on Route 9 going south...

After a block or two you'll pass Kraft Foods on the right. After that traffic signal (which will probably be flashing yellow), go through seven more traffic signals (the last will be at West Clinton Avenue). Look carefully on the right. The second driveway on the right will have a sign "Columbia University Nevis Labs" (you don't want "Columbia University Press"); be careful not to turn into Ardsley Ave, the road immediately past the Nevis driveway. Turn right into that driveway and drive to the Nevis parking lot. The main building will be right in front of you.

How to get here by train

Note: The train schedule for the Metro-North Hudson line is available on-line. Select trains leaving from either Grand Central or Marble Hill, and arriving at Ardsley.

From Columbia University

Take the 1 train north to 225th street. As you walk down the stairs from the elevated platform, note the location of the Metro-North Marble Hill train station about one block to the west. The northbound train stops there hourly about 40 minutes after the hour during non-rush hours. Take the train north to the Ardsley-on-Hudson station and follow the directions below.

From elsewhere in Manhattan

Go to Grand Central Station (here's a subway map). Take the Metro-North Hudson Line train northbound. During non-rush hours, this train leaves Grand Central hourly at 20 minutes after the hour. Get off at the Ardsley-on-Hudson station and follow the directions below.

Once you're at Ardsley-on-Hudson...

Take the left-hand road uphill. The first paved driveway on your left (about 200 yards from the station) leads to the Nevis grounds. Keep going uphill. The first building on the right you'll see is the old Cyclotron Building, now used by Astrophysics and RARAF. The next building you'll see on the right as you follow the winding road uphill is the Electronics Shop. The last building on the left is the Particle Physics Research Building; the machine shop is on the lower floor and the offices are on the upper floor. If you go to the top of hill, the carriage house (shipping, receiving, and supplies) is on the right as you face the parking lot.

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