Montgomery County
Traprock at the top of the valley
The Perkiomenville Quarry sits about a mile from this borough and works traprock as a surface operation under Heidelberg Materials Northeast, with 17 people. Traprock is the harder material in this district and it is not what the pits immediately east of here are working.
The Harleysville Materials pit about 4 miles south-east works crushed stone with 6 people, and Naceville Materials about 6 miles east works crushed stone with 14. Same district, different rock.
Four materials inside thirteen miles
Those differences widen as you go west. The Martin Stone Quarries about 9 miles west works sandstone with 37 people and the Rolling Rock Pit about 12 miles north-west works dimension stone with 38 — so within 13 miles the quarries here work four distinct materials.
So this borough sits on the seam between two districts rather than in the middle of one. The Douglassville Quarry about 12 miles west works traprock with 18 and the Blooming Glen Quarry about 13 miles east works crushed stone with 10, which are the two edges of it.
Where the stone actually goes
That spread of material matters because the destinations differ too. The Norfolk Southern bulk terminal at Pottstown is about 10 miles south-west and the North American Rail Network maintained by the Federal Railroad Administration and the Bureau of Transportation Statistics lists the Pottstown Yard about 12 miles south-west, and a good deal of what leaves these pits is heading that way.
So the lanes run south and west rather than in every direction.
Tri-axle dumps and aggregate haulers off the pits, flatbeds and lowboys off the dimension side, day cabs and road tractors, rollbacks, service bodies and the pickups every small operation keeps beside its big truck.
Between the Perkiomenville Quarry here and the Martin Stone Quarries about 9 miles west the equipment turns over on separate cycles, and a body set up for traprock is not what a sandstone pit is looking for.
- Tell us which, because traprock and sandstone are hard on a body in different ways.
A contract ends or a face works out, and the truck that served it has no obvious second home.
So it stands between the Rolling Rock Pit about 12 miles north-west and the Douglassville Quarry about 12 miles west, on ground that has no further use for it.