AFE 10351, Basin, Montana, 1904. Extend Katy Mine Spur. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Cost: $3500. Series I. Lines West. Butte Division. Other Subject Categories: Track, Industry

AFE 10145, Basin, Montana, 1904. Interlocked with West Switch at Mountain Junction. Interstate Commerce Commission Account Number 27, Signals and Interlockers. Cost: $221. Series I. Lines West. Butte Division. Other Subject Categories: Crossings, Interlocking Plants

AFE 10013, Basin, Montana, 1918. Take Up Quarry Spur 840 FeetLong. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Cost: $561. Series II. Lines West. Butte Division. Other Subject Categories: Track, Industry

AFE, Series II, Number 9315, Basin, Montana, October 11, 1918, Stove. Located in folder 'Boulder'. Other subject categories: Equipment. Initial cataloger's disposition code: Z, File not retained

AFE, Great Northern Railway General Manager, Number 744, Basin, Montana, March 19, 1905, Basin Red Company Spur. Located in folder 'Boulder'. Other subject categories: Track. Initial cataloger's disposition code: X, AFE itself not found but referenced in other documents

AFE, Series II, Number 7386, Basin, Montana, March 25, 1918, Repairs to Bridge 120. Located in folder 'Boulder'. Other subject categories: Bridge. Initial cataloger's disposition code: M, AFE Sheet page 1, with map or other paper

AFE, Series II, Number 71989, Basin, Montana, December 21, 1945, Remove Coaling Platform. Located in folder 'Boulder'. Other subject categories: Coal. Initial cataloger's disposition code: M, AFE Sheet page 1, with map or other paper

AFE, Series II, Number 69019, Basin, Montana, June 23, 1944, Repair Depot. Located in folder 'Boulder'. Other subject categories: Depot. Initial cataloger's disposition code: Z, File not retained