Great Northern Railway Historical Society Blueprint Collection JSBP4867, Sioux Falls, South Dakota, 1912. Great Northern Blueprint Number 108.12.01, Signal Diagram. Arrangement. Interstate Commerce Commission Account Number 27, Signals and Interlockers. Other ICC account descriptions: ICC Account Number 27, Interlocking.
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LC Name Authority: https://lccn.loc.gov/n81007242
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Sioux Falls (S.D.)
BT South Dakota