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US 340

Washington
Sandy Hook
Weverton

Frederick
Knoxville
Jefferson
Frederick
US 340 · Jefferson Pike, Jefferson National Pike
16.99 mi. in Maryland; from VA Line east to US 40, Frederick.

Marked north-south.

NHS: Entire length in Maryland.

The word "National" is added to the road's name in Frederick County.

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340
  0.0 VA Line
  1.6   1 MD 67
  2.3 WA-FR Line
  2.5 MD 180
  4.4   2 MD 17
  7.8   4 MD 180
10.6   8 Lander
0.0 0 MD 000
0.0 0 MD 000
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