Directions to the observatory

Finding the NJAA Observatory

Using GPS or Smartphone Navigation

Don't worry if you feel like you're driving into the park. You're in the right place! Simply follow Observatory Road to the top of the hill and look for the NJAA parking lot.


The easiest way to find us is to search for:

Observatory Road, Glen Gardner, NJ 

Be sure to select the Observatory Road located in  Glen Gardner, New Jersey . Observatory Road leads directly to the observatory.

Once on Observatory Road, continue approximately one-half mile up the hill. The NJAA parking lot will be on your left.


Driving Directions

From Interstate 78 East

Take  Exit 17  and follow Route 31 North.

From Interstate 78 West

Take  Exit 16  and follow Route 31 North.

Continue north on Route 31 and turn onto 
Route 513 North (toward High Bridge).

Follow Route 513 through High Bridge and continue north for approximately 1 mile beyond town.

As you approach a curve to the left, look for a  45 MPH speed limit sign  on the right side of the road. Directly across from the sign is the entrance to  Observatory Road  within Voorhees State Park.

Turn left onto Observatory Road and continue approximately one-half mile to the NJAA parking area on the left.


Traveling South on Route 513

If you are approaching from Califon or points north:

After passing  Voorhees High School  on your left, continue south on Route 513 for approximately 1 mile.

Watch for a small brown  "NJAA Observatory"  sign on the right side of the road. The entrance to Observatory Road is immediately beyond the sign.

Turn right onto Observatory Road and continue up the hill to the
observatory parking area on the left.


GPS Coordinates

Decimal Degrees (WGS84) 

Latitude: 40.681793
Longitude: -74.898047

Degrees, Minutes, Seconds 

Latitude: N 40° 40' 54"
Longitude: W 74° 53' 52"

Degrees and Decimal Minutes 

Latitude: N 40° 40.908'
Longitude: W 74° 53.883'