From New York and New Jersey:

Interstate 80 West to Scotrun exit. Take left off ramp onto Route 611 North; 611 North to Route 940 East; 940 East to 390 North. Look for BP gas station on left. Just past the Station, the road forks; take the left fork. Administrative office is one mile on the right.

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From Philadelphia/Allentown:

Northeast Extension (Interstate 476 North) to Lehigh Valley exit. Take Route 22 East 15 miles to Route 33 North; 33 North to Interstate 80 West. Interstate 80 WEst to Scotrun Exit. Take left off ramp onto Route 611 North; 611 North to Route 940 East; 940 East to 390 North. Look for BP gas station on left. Just past the Station, the road forks; take the left fork. Administrative office is one mile on the right.