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Focused on subterranean search and rescue, Aperture Natural Resources provides world-class consulting and training for emergency response in the unique environment.

Aperture Natural Resources exists as a consulting firm dedicated to providing high-quality consulting services in the field of unique hazards, particularly for the mining and tunneling industries.  


Aperture NR creates and teaches the highest quality trainings for emergency response, responsible for the development of one of the only mine and tunnel rescue programs in the United States, as well as other specialized trainings for mine and tunnel rescue teams, fire departments, industrial emergency response teams or emergency planners.  Aperture NR is also able to travel to your company's site to observe, evaluate and train rescue teams. 


MSHA Contractor ID # B3321

Chris Enright
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Author of the Mine Rescue Manual, graduate of the Colorado School of Mines with a Master's degree in Mining and Earth Systems engineering as well as a Bachelor of Science Degree in Geological Engineering Also serving as the Assistant Chief of Operations at the Colorado School of Mines Mine Rescue Team, and a professional emergency responder with both fire and EMS agencies in the Denver area.

Professional Qualifications and Certifications


  • Colorado Licensed Professional Engineer

  • Advanced Mine Rescue

  • MSHA 20-Hour Mine Rescue

  • Firefighter II

  • Hazardous Materials Operations

  • On-Call Team Qualification (CSM Mine Rescue)

  • Rope Rescue Technician (Level I)

  • Emergency Medical Technician (with NOLS Wilderness endorsement)

  • IS 003, 100, 200, 241, 242,, 300, 400, 700, 800

  • Wildland Firefighter (Type II)

  • Amateur Radio License- General

  • CEVO-3 Ambulance


Mine Rescue Manual: A Comprehensive Guide for Mine Rescue Team Members. Chris Enright and Robert Ferriter.  Denver: Society of Mining, Metallurgy and Exploration, December 2014.


Advanced Life Support in the Mining Environment. Chris Enright, Clancy Harman, Jurgen Brune.  Presentation to the Soceity of Mining, Metallurgy and Exploration, February 22, 2016.


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