Staples, MN: Northern Pacific Depot, Two Roundhouses and BNSF Railyard

Depot: (Satellite, Amtrak also uses the building)

Roundhouses: (Satellite)

Railyard: (Satellite, the yard has cuts of coal hoppers and tank cars)

Street View

Marty Bernard posted
Northern Pacific Depot at Staples, MN in October 1976, unknown photographer slide donated to the Iowa Chapter NRHS. Google shows the building is still there in good shape.
Harold J. Krewer: Still a stop for Amtrak.

Street View

You can see two different generations of roundhouse stall remnants. 

Satellite

A topo map shows that the arc of the roundhouse by Wisconsin Ave. had already been removed by 1966.

1966 Staples Quad @ 24,000

I first checked out a 1962 photo because it was of higher resolution. That is when I realized there was a smaller roundhouse west of the main one.

EarthExplorer, Apr 4, 1962 @ 18000, AR1VALN00010067
Dennis DeBruler commented on Marty's post

So I looked at the oldest photo that was available to see the main roundhouse. But I still could not find the turntable for the smaller roundhouse.

EarthExplorer, Sep 22, 2953 @ 50,000, ARA001140101439
Dennis DeBruler commented on Marty's post