Great Northern Railway Historical Society Blueprint Collection JSBP2498, Hills, Minnesota, undated. Map and Profile of Crossing # 47. Diagram of Crossing. Interstate Commerce Commission Account Number 15, Crossings and Signs. Other ICC account descriptions: ICC Account Number 14, Public Crossing.

Great Northern Railway Historical Society Blueprint Collection JSBP2497, Hills, Minnesota, 1920. Raise and Widen Approaches to Bridge On 1St Street. Authorization for Expenditure 12774. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Bridge.

Great Northern Railway Historical Society Blueprint Collection JSBP2495, Hills, Minnesota, 1918. Great Northern Blueprint Number 3110.56.01, Crossing Frog # 1. with Ill Central Ry. Authorization for Expenditure 9376. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Other ICC account descriptions: ICC Account Number 12, Rail Line.