Mencon, LLC—Craig, Colorado Coal, Longwall Mining, Project Summaries: Highwall Mining, Project Summaries: Rock Testing, Project Summaries: Stress Measurements, Project Summaries: Surface Mining Geotechnical Evaluation and Longwall Feasibility AAI performed geotechnical and economic evaluations for the feasibility study of longwall mining at the Trapper Mine for Mencon, LLC. A [...]