From the record
“The C & H Refinery Historic District comprises an intact industrial complex in Lusk, Wyoming that documents an early 20th-century refinery. The C & H Refinery is noted as the smallest functioning oil refinery in the world, and may be the only remaining thermal distillation refinery, all other refineries having modernized to the catalytic cracking method.”
Wikipedia article C and H Refinery Historic District, CC BY-SA 4.0.
One of 4 National Register listings published here for Niobrara County · listed in 2001 · category: District.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service
