The only sandstone buildings in Yellowstone Park are “Fort Yellowstone” in Mammoth. Scottish stonemasons were hired to build these buildings in the earliest 1900’s. They were built for the US Army which ran the park back then. They quarried this...
The Roosevelt Arch, at the north entrance to Yellowstone Park, was built in 1904 with TR himself laying the cornerstone. The arch is built from basalt column segments quarried somewhere in the park. Notice that the corners and arches were chiseled rectangular while...
In late 2021, we started reclaiming the stone from this old barn in central Montana. The sandstone was used on a new Jackson, WY residence. The stonework on the old barn had almost completely collapsed. The new residence, designed by Annex Architecture, is just being...
This stone chapel was built in 1913, when the US Army managed Yellowstone from a fort in Mammoth. This sandstone was quarried by Scottish stonemasons from very nearby, between Mammoth and the Gardiner River. I haven’t seen the actual quarry yet. Nearly all of...
This hearth was cut from a weathered and lichen-covered sandstone boulder from central Montana. Both the back and the base of the boulder were sawn off. Then the back of the boulder was notched to fit around the firebox. Looked pretty good when we...
We’re producing basalt wall stone from an old Northern Pacific ballast quarry about 30 miles north of Yellowstone Park in Paradise Valley. The basalt flow that has been quarried here is called the Hepburn Mesa Basalt. It erupted about 2.2 million years ago and...