Glenwood Yard - Hazelwood, PA - The major yard in the Pittsburgh area.  This yard serviced about 36 trains a day either by accepting them or adding cars to them or originating them out of the yard.  This yard area also had minor servicing facilities along with major overhaul facilities.  In the Glenwood yard area was the Glenwood Backshop which did major overhauls of steam engines and then started to do the same thing for diesel engines as they became more prevalent on the railroad.  There was also a car shop and wheel house here too so this was a full service area for the railroad.  The backshop located here had a good reputation with the engineers and fireman as the engines that were repaired here would not be back in the shop for quite awhile.  This shop was full of men that took great pride in their work.  The backshop was over 1 acre under roof.

10th Street Passenger Station - Pittsburgh, PA - This was a stub ended passenger facility that serviced the downtown area of Pittsburgh.  The original station was built entirely of wood and was quite a sight to see.  There was an extensive yard here for both freight and passenger service about 1918.  The passenger equipment could be refilled here with provisions along with being able to turn in used bedding for new sheets and such for the Pullman customers.  There was also a freight house here for the downtown Pittsburgh area.  When the Parkway was being built the B&O had to move their station from Smithfield Street to Grant Street and also the yards were removed and about all that was left was about a half dozen tracks for the new and much smaller B&O Passenger Station.  This station also later served the PAT Train its fate was sealed when the passenger service ended completely.  This station was eventually torn down to make room for a new PNC Bank Building. 

Laughlin Junction - Pittsburgh, PA - The wye located here at Laughlin Junction was of major importance to the B&O passenger service.  The B&O Passenger Trains heading east had to proceed east through the wye and then back the entire train about 2 miles into the passenger station in downtown Pittsburgh.  Likewise, the trains heading west had to go west through the wye and then back into the passenger station.  This slowed down the passenger service but was the only way to get into the station.  With the diesel becoming more prevalent in later years there was a helper pocket added at the wye for the climb not only through Schenley Tunnel but also over the very windy and steep Bakerstown Grade.

Schenley Tunnel - Pittsburgh, PA - After leaving the B&O's Connellsville-Pittsburgh mainline at Laughlin Junction the railroad headed into some rugged terrain that required the construction of Schenley Tunnel about half way between the two rivers.  Schenley Tunnel is 2,872 feet long and the east portal is at the summit of the short but steep grades coming out of Laughlin Junction.  The grade heading westbound from Laughlin Junction was mostly 1.3% according to the 1952 track maps and a little bit over 1 mile long.  The eastbound grade from the Allegheny Bridge that crossed the Allegheny river had a maximum grade of 1.38% according to the track maps but it dropped to .75% inside of Schenley Tunnel.  To the west after the tunnel ended the tracks passed under the four track mainline of the Pennsylvania Railroad.

Herr's Island - Pittsburgh, PA - Large Pittsburgh Joint Stock Yards Co. is located here, a soap factory, and a packing company were located here and served by both the B&O and PRR.

Willow Grove Yard - Millvale, PA - Willow Grove is located on the north bank of the Allegheny River just below Millvale. It is principally used as a collecting point for freight of local origin and destination, and for interchanging cars between railroads. Classification of cars is made here for the Produce Yard, 9th Street, 36th Street Yard, and the North Side section of the city. Cars from those points are also classified here where they are later picked up by through and local trains.

BG Tower - Etna, PA - The primary industries here are National Valve & Manufacturing Co., Isabella Furnace of U.S. Steel and Spang, Chalfant & Co., a pipe manufacturer.

Glenshaw, PA - The principal industries of the this area included the manufacture of glass, chemicals, machinery, and abrasives.

Wildwood Coal Mine - Wildwood, PA - A large coal mine and cleaning plant located here generated traffic for the B&O into the 1960's.  Most of the coal coming out of this mine was shipped eastbound for other markets.  This mine was owned by The Butler Consolidated Coal Company and had a deep mine in the Freeport Coal Seam.

Bakerstown, PA - Located at the summit of the grade coming out of Etna this town had several industries that the railroad served.  They included: Waverly Oil Co, TE Hohmann, and several other industries that took LCL traffic via a team track.  The Waverly Oil Co. was based in Pittsburgh and this location packaged motor oil and grease into containers from small cans of oil for automobiles to large barrels of oil and grease.  The TE Hohmann company was a builder supply company that provided bricks, cement blocks, trucks of concrete and all sizes of lumber for construction the area.  They also provided foundation digging services.  Bakerstown was the highest point on the B&O mainline coming out of Glenwood yard.  The helpers cut off at the top of the hill usually on the fly and then drifted back down the Glenwood Yard during the steam era and back to Laughlin Junction with the introduction of the more modern diesels.  They went back this far because they usually had to help trains up the hill to Schenley Tunnel as well as Bakerstown hill.

Mars, PA - The town's industrial output included chemicals, clay products, and toys.

Evans City, PA - Mostly agricultural community with foundry products also manufactured here.

Eidenau, PA - This was the junction of the B&O's Butler Branch with the mainline to New Castle and Chicago.

Zelienople, PA - The Tasa Coal Co. operated its Mine No. 8 in this area. It was a strip mine operation due to the thinness of the area coal seams. 

Ellwood City, PA - Manufacturing area and there was also shared trackage with the P&LE here.

New Castle, PA - The B&O maintained a large classification yard and engine facility at New Castle Junction.  It was the end of the Pittsburgh Division and the beginning of the Akron Division.