CORNERSTONE ENVIRONMENTAL CONSULTING LLC

Cornerstone Environmental Consulting LLC specializes in cultural resources surveys and environmental consulting services for federal land management agencies, with deep expertise in Class III archaeological inventories under the National Historic Preservation Act. The firm conducts intensive pedestrian surveys, records isolated occurrences and re-recording of previously documented sites, and prepares compliance reports for sensitive federal lands, including national forests and wildlife refuges. Their technical proficiency spans archaeological site identification, cultural resource assessment, and mitigation planning across diverse terrains—from arid desert ecosystems to forested mountain regions—ensuring adherence to NHPA, NEPA, and Section 106 requirements. A key differentiator is their consistent execution of large-scale, high-precision field surveys on complex, multi-acre project areas, often under tight regulatory timelines. The company maintains a strong, recurring relationship with the U.S. Department of Agriculture and the Department of the Interior, delivering cultural resource services for the Kaibab National Forest, Grand Canyon–Parashant National Monument, and multiple National Wildlife Refuges. Their work supports land use planning, infrastructure development, and conservation initiatives on federally managed lands, demonstrating a proven ability to navigate complex interagency coordination and tribal consultation protocols. Their primary focus lies in NAICS 541620 (Environmental Consulting Services), with secondary work in social science research and forestry support activities, positioning them as a niche provider of compliance-driven environmental and cultural resource solutions. They operate from Flagstaff, Arizona, leveraging regional knowledge of Southwestern cultural landscapes and archaeological contexts. As a small business with no federal certifications, they compete on technical rigor, field experience, and consistent delivery of federally compliant documentation, serving as a trusted contractor for agencies requiring precise, defensible cultural resource assessments.