Tunnels, dams, pipelines, trenchless, and geohazard mitigations all have one thing in common. Their success relies on an accurate understanding of the ground conditions. Golden Geotechnics, Inc. was founded to provide engineering geology expertise to contractors, owners and design teams to ensure successful underground projects from layout to completion by understanding the ground and its behavior during construction. Our method incorporates a regional geologic understanding to guide local site explorations to create a comprehensive picture of anticipated ground conditions and behavior to maximize client risk reduction. We support contractors, owners and design teams on projects of all sizes throughout the project lifecycle on site investigations, design, prefeasibility assessments, construction observation, differing site condition investigations and dispute resolution.