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Greenbelt interlocking
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College Park interlocking [01]
![College Park interlocking [01]](../../i/upload/2024/07/15/20240715141119-0c23af03-cu_s9999x250.jpg "College Park interlocking [01] (973 visits) Interlocking south of the College Park-University of Maryland station, on the Green Line of the Wash...")
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College Park interlocking [02]
![College Park interlocking [02]](../../i/upload/2024/07/15/20240715141123-5fa6adc8-cu_s9999x250.jpg "College Park interlocking [02] (1686 visits) Interlocking south of the College Park-University of Maryland station, on the Green Line of the Wash...")
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Smokestack at Brunner Island Steam Electric Station [12]
![Smokestack at Brunner Island Steam Electric Station [12]](../../i/upload/2024/07/18/20240718215743-0c4ae1ce-cu_s9999x250.jpg "Smokestack at Brunner Island Steam Electric Station [12] (1563 visits) Two railroad switcher locomotives on a track adjacent to a large pile of coal at Brunner Island Stea...")
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Vintage US&S railroad signals [07]
![Vintage US&S railroad signals [07]](../../i/upload/2024/07/19/20240719164643-b95a5ccd-cu_s9999x250.jpg "Vintage US&S railroad signals [07] (1397 visits) Vintage Union Switch & Signal (US&S) railroad signals at the western end of a 5,842-foot siding, nea...")
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Vintage US&S railroad signals [08]
![Vintage US&S railroad signals [08]](../../i/upload/2024/07/19/20240719164647-d570e1ea-cu_s9999x250.jpg "Vintage US&S railroad signals [08] (1484 visits) Vintage Union Switch & Signal (US&S) railroad signals at the western end of a 5,842-foot siding, nea...")
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Vintage US&S railroad signals [09]
![Vintage US&S railroad signals [09]](../../i/upload/2024/07/19/20240719164652-3c573652-cu_s9999x250.jpg "Vintage US&S railroad signals [09] (1392 visits) Vintage Union Switch & Signal (US&S) railroad signals at the western end of a 5,842-foot siding, nea...")
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Norfolk Southern track through Stuarts Draft, Virginia [01]
![Norfolk Southern track through Stuarts Draft, Virginia [01]](../../i/upload/2024/07/19/20240719164656-1aefd966-cu_s9999x250.jpg "Norfolk Southern track through Stuarts Draft, Virginia [01] (1398 visits) Track operated by Norfolk Southern Railroad through Stuarts Draft, Virginia, near the grade crossing...")
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Norfolk Southern track through Stuarts Draft, Virginia [02]
![Norfolk Southern track through Stuarts Draft, Virginia [02]](../../i/upload/2024/07/19/20240719164700-b7a394ba-cu_s9999x250.jpg "Norfolk Southern track through Stuarts Draft, Virginia [02] (1412 visits) Track operated by Norfolk Southern Railroad through Stuarts Draft, Virginia, near the grade crossing...")
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Norfolk Southern track through Stuarts Draft, Virginia [03]
![Norfolk Southern track through Stuarts Draft, Virginia [03]](../../i/upload/2024/07/19/20240719164704-7987325d-cu_s9999x250.jpg "Norfolk Southern track through Stuarts Draft, Virginia [03] (1484 visits) Track operated by Norfolk Southern Railroad through Stuarts Draft, Virginia, near the grade crossing...")
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Norfolk Southern track through Stuarts Draft, Virginia [04]
![Norfolk Southern track through Stuarts Draft, Virginia [04]](../../i/upload/2024/07/19/20240719164707-62584732-cu_s9999x250.jpg "Norfolk Southern track through Stuarts Draft, Virginia [04] (1600 visits) Track operated by Norfolk Southern Railroad through Stuarts Draft, Virginia, near the grade crossing...")
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Switch at west end of siding in Stuarts Draft, Virginia
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Tower 18 interlocking [01]
![Tower 18 interlocking [01]](../../i/upload/2024/11/15/20241115185613-f02c209c-cu_s9999x250.jpg "Tower 18 interlocking [01] (103 visits) Tower 18 interlocking, a three-quarter union at the northwestern corner of the Loop in the downtown ...")
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Tower 18 interlocking [02]
![Tower 18 interlocking [02]](../../i/upload/2024/11/15/20241115185621-7128aab3-cu_s9999x250.jpg "Tower 18 interlocking [02] (59 visits) Tower 18 interlocking, a three-quarter union at the northwestern corner of the Loop in the downtown ...")
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Tower 18 interlocking [03]
![Tower 18 interlocking [03]](../../i/upload/2024/11/15/20241115185626-e65cbb45-cu_s9999x250.jpg "Tower 18 interlocking [03] (77 visits) Tower 18 interlocking, a three-quarter union at the northwestern corner of the Loop in the downtown ...")
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Tower 18 interlocking [04]
![Tower 18 interlocking [04]](../../i/upload/2024/11/15/20241115185634-5eee462c-cu_s9999x250.jpg "Tower 18 interlocking [04] (80 visits) Tower 18 interlocking, a three-quarter union at the northwestern corner of the Loop in the downtown ...")
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Tower 18 interlocking [05]
![Tower 18 interlocking [05]](../../i/upload/2024/11/15/20241115185641-68b75281-cu_s9999x250.jpg "Tower 18 interlocking [05] (66 visits) Tower 18 interlocking, a three-quarter union at the northwestern corner of the Loop in the downtown ...")
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Tower 18 interlocking [06]
![Tower 18 interlocking [06]](../../i/upload/2024/11/15/20241115185651-90db4034-cu_s9999x250.jpg "Tower 18 interlocking [06] (78 visits) Tower 18 interlocking, a three-quarter union at the northwestern corner of the Loop in the downtown ...")
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Tower 18 interlocking [07]
![Tower 18 interlocking [07]](../../i/upload/2024/11/15/20241115185705-7174effa-cu_s9999x250.jpg "Tower 18 interlocking [07] (79 visits) Tower 18 interlocking, a three-quarter union at the northwestern corner of the Loop in the downtown ...")
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Tower 18 interlocking [08]
![Tower 18 interlocking [08]](../../i/upload/2024/11/15/20241115185721-0b59ccae-cu_s9999x250.jpg "Tower 18 interlocking [08] (80 visits) Tower 18 interlocking, a three-quarter union at the northwestern corner of the Loop in the downtown ...")