Keywords: Crude Helium Enrichment Unit.jpg en The Crude Helium Enrichment Unit in the Cliffside Gas Field Federal Helium Program outside Amarillo Texas 2012-06-19 http //www blm gov/wo/st/en/info/history/sidebars/energy/managing_the_blm_s html US Bureau of Land Management PD-USGov-BLM PD-USGov Uploaded with UploadWizard Helium production Bureau of Land Management |