This is just the beginning! Our collection holds over 300 years of history, including rare newspapers, obituaries, marriage records, birth records, and so much more—most of which you won’t find anywhere else!
U S driller helps Chilean miners escape tunnel
Jeff Hart a Denver contractor drilling water wells for U S Army bases in Afghanistan led the effort to drill a 33 day rescue shaft for 33 trapped miners at San Jose mine Chile. The Plan B shaft from Geotec Boyles Bros. used T130 bits to reach the chamber. Hart and a top team navigated abrasive rock and equipment setbacks to complete the breakthrough.
MENTIONED IN THIS ARTICLE
Roberto Candia
Jeff Hart
Matt Staffel
Denver
Elizabeth Segovia
Dario Segovia Rojo
San Jose
Copiapo
Chile
U.S. Army
Afghanistan
Hart
Colorado
Codelco Mining Company
Codelco
Geotec Boyles Bros
Geotec
James Stefanic
Pennsylvania
Schramm Inc
Center Rock Inc
Stefanie
United States
Center Rock
Brandon Fisher
Fisher
Dayana Olivares
Carlos Bugueno
Layne Christensen Company
Mission Woods
Kan