Mining Assessments

At Petralogix Engineering, Inc., we provide integrated geological and geophysical assessment services tailored to the unique challenges of hard rock and placer mining throughout the Western U.S.—with a special focus on California, Oregon, and Nevada. Our multidisciplinary team of geologists, geophysicists, and mineral resource specialists deliver the critical data and interpretive expertise necessary for responsible exploration, permitting, development, and ongoing operation of mining properties.

From Legacy Claims to Modern Compliance

Whether you're revitalizing a historic gold claim in the Klamath Mountains, evaluating lithium potential in Nevada, or pursuing aggregate extraction in volcanic terrain, Petralogix brings clarity to the subsurface. We work with landowners, junior explorers, and established operators to navigate both legacy entitlements and modern permitting demands.

WE SPECIALIZE IN:

Vested rights evaluations for historic mining claims and patented lands
Alquist-Priolo fault zone assessments for mines in seismically sensitive areas
BLM and USFS permitting support, including CEQA and NEPA-compliant resource evaluations
Site characterization for TSF (Tailings Storage Facilities) and waste rock management
All forms of geological and geophysical mining assessment and evaluations

Technical Services that Go Beyond the Drillhole

Petralogix integrates high-resolution geophysics with boots-on-the-ground geology to build realistic 3D models of subsurface conditions. These tools help reduce uncertainty and optimize planning, whether you're siting a decline portal, designing pit slopes, or evaluating placer channel geometry. Our deep knowledge of the geological provinces of the Western U.S.—from the Basin and Range to the Sierra Nevada foothills—means we don’t just bring technical capability; we bring regional experience. Whether your project is under review by a county planning agency or a federal land manager, we provide the documentation, modeling, and expert testimony necessary to move forward.

Petralogix stands ready to assist at every stage—from preliminary site assessments and due diligence through active permitting, operational support, and closure. With decades of combined field experience, we help our clients explore smarter, mitigate risk, and unlock the full value of their mineral resources.