In a selectively compressed way I model the exchange of traffic between The PRR and the Huntingdon & Broad Top Mountain railroad at Huntingdon, PA. The freight exchange was largely loaded coal hoppers coming out of small mines on the west face of Broadtop Mountain. The narrow gauge East Broad Top served mines on the east face of the same mountain. Perhaps the more interesting exchange was for a Supplee milk car handed off to a daily 3 car H&BT train running between Huntingdon and Bedford, PA. The train lasted until 1954 when the H&BT was abandoned due to a decline in coal traffic.
On my layout the Huntingdon scene is only about 20" deep but packs in some interesting operation in a narrow aisle.
On the right side of the aisle is my representation of Osceola Mills, PA on the PRR's Tyrone & Clearfield Branch - that story is for another time.
In the morning PRR local #623 brings 2 empty Supplee cars in to Huntingdon from Philadelphia. The milk cars are obstructed from view at the rear of the train.
Switching was done by a PRR H9 2-8-0 assigned to Huntingdon. One milk tank car goes to the Supplee creamery in Huntingdon.
The other is hauled 52 miles down to a Supplee creamery in Bedford, PA. by H&BT train #2 (When the photos were taken I hadn't finished work on #37 and the brass ex-PRR BM62 RPO. The plan is to complete the work during the COVID19 movement restrictions. When done I'll post pictures of the train.)
With the 6k gallon tanks in each car loaded the process is reversed later that afternoon.
The PRR H9 collects the loaded milk cars from the H&BT station siding and the local cremory.
Eastbound is PRR mail and express train #96 hauled by 3 E7's.
The H9 tacks the 2 loaded milk cars on the rear of 96's express service cabin car.
When we run the scenario in an operating sessions we’ll use 3 crews - one for H&BT 2-8-0 #37 and its train, one for the H9 switcher, and one for #96's E7 A-B-A.
Gets a little crowed in the asile for social distancing 
