United States Railroad Subdivisions

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Maryland Area Rail Commuter

Reporting mark MARC Class III ━━━━ Subdivision;
Subdivisions Baltimore Terminal (R) Capital Subdivision (R) Cumberland Subdivision (R) Frederick Branch (R) Main Subdivision (R) Metropolitan Subdivision (R) Northeast Corridor (DE-MD-NJ-PA) (R) Old Main Line (R) Washington Terminal (R)
O = Owner, R = Track rights

Data from U.S. Department of Transportation North American Rail Network Lines March 2022