St. John's at Prospect Hall 410-539-5794x31
889 Butterfly Lane
Frederick, MD 21703

Take Exit 16 off of the Beltway and head West on I-70. Take Exit #53B off of I-70 onto Rt-40 West toward Gettysburg. Take the ramp to S Jefferson St. US-340 West. Take the MD-180/MD-351 exit toward Jefferson Pike (MD-180). Turn left onto Jefferson Pike and turn right onto Butterfly Lane.