Abandoned Mine Research, Inc.

American Society of Safety Engineers

Caterpillar

Colorado Division of Reclamation and Mining Safety

Council on Certification Health, Environmental, and Safety Technology

Federal Mine Safety and Health Review Commission

International Society of Mine Safety Professionals

Jack Spadaro-Mine Safety, Health, and Environmental Consultant

Joseph A. Holmes Safety Association

Linked In

Mine Safety and Health Administration

National Institute of Safety and Health Mining: Safety and Health Research

National Safety Council

Occupational Safety and Health Administration

Society of Mining Engineers

United States Mine Rescue Association

crusher conveyor system

guarding hazards