PA 651-660 | PA 662 | PA 663 | PA 664 | PA 666 | PA 669 | PA 670 | PA 671-680

Abbreviations:
JCT = Junction
I = Interchange
M = Multiplex (click below on this abbreviation for a multiplex page)
NT, ST, ET, WT = Northern, Southern, Eastern, and Western Terminus (click below on one of these abbreviations for a route terminus page)
NS, SS, ES, WS = Northern, Southern, Eastern, and Western Split of multiplex

PA 662

Junction list:

• Berks County
• NT JCT PA 61
• Begin/End SR 0662
• JCT PA 143 ST
• JCT US 222
• JCT PA 12 ET
• JCT PA 73
• M PA 73(W-E)/PA 662(N-S), SR 0073
• JCT PA 73
• JCT PA 562
• Begin/End SR 0662
• ST JCT US 422 (Eastern)
• Berks County

Links and Sources:

• PA 662 Termini · Adam Prince's Highway Beginnings and Endings in Pennsylvania

PA 663

Junction list:

• Bucks County
• NT JCT PA 309, PA 313 WT
• Begin/End SR 0663
• I I-476 Exit 44[32]
• Bucks/Montgomery County Line
• JCT PA 29 (Southern)
• JCT PA 73
• M PA 73(E-W)/PA 663(N-S), SR 0073
• JCT PA 73
• Begin/End SR 0663
• ST JCT PA 100
• Montgomery County

Links and Sources:

• PA 663 Termini · Adam Prince's Highway Beginnings and Endings in Pennsylvania

PA 664

Junction list:

• Lycoming/Clinton County Line
• NT JCT PA 44
• Clinton County
• Begin/End SR 0664
• Begin/End SR 0664
• ST JCT PA 120
• Clinton County

Links and Sources:

• PA 664 Termini · Adam Prince's Highway Beginnings and Endings in Pennsylvania

PA 666

Junction list:

• Warren County
• ET JCT US 6
• Begin/End SR 0666
• JCT PA 948 NT
• Warren/Forest County Line
• Begin/End SR 0666
• WT JCT US 6
• Forest County

Links and Sources:

• PA 666 Termini · Adam Prince's Highway Beginnings and Endings in Pennsylvania

PA 669

Junction list:

• Somerset County
• NT JCT US 219
• Begin/End SR 0669
• Begin/End SR 0669
• ST(PA) MD 669, MD state line, Somerset Co., PA/Garrett Co., MD
• ST JCT Alternate MD 40

Links and Sources:

• PA 669 Termini · Adam Prince's Highway Beginnings and Endings in Pennsylvania
• MD 669 Termini · Brian Polidoro's Maryland State Route Ends
• MD 669 Junction List · Mike Pruett's Maryland Roads

PA 670

Junction list:

• Wayne County
• NT JCT PA 370
• Begin/End SR 0670
• JCT PA 371
• M PA 371(W-E)/PA 670(N-S), SR 0371
• JCT PA 371
• JCT PA 247
• Begin/End SR 0670
• ST JCT PA 191
• Wayne County

Links and Sources:

• PA 670 Termini · Adam Prince's Highway Beginnings and Endings in Pennsylvania