Born-Digital or AnalogAnalogTranscriptEmperius mining company To drastically reduce force on operation near Creede. Post F 23, 1971 p.14 Ordered by Colorado Water Pollution Control Commission to improve mine-acid drainage. Post Ja 12, 1972 p.23 RMN Ja 13, 1972 p.42 Study o fish-kill link to Emperious zinc firm. Cervi's Journal 0 4, 1971 p.1,9 Leased by Minerals Engineering Co., a Denver firm, along with Creede Mines, Inc. Post Ja 1.3, 1973 p $CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
