Tierra’s team of cultural resources professionals has been providing archaeological services since 1993. Our archaeologists identify, evaluate, and mitigate archaeological, historical, and architectural resources within the context of the National Historic Preservation Act (NHPA) and other preservation laws and regulations.

We take pride in our proven track record of successfully completing projects under the jurisdiction of multiple Federal, State, and local agencies. As a result of the quality of our work and the responsiveness of our staff, we have fostered excellent professional relationships with regulatory agencies and our clients.

Our team of expert archaeologists is capable of handling multiple, concurrent small and large scale projects and producing detailed professional reports. Our corporate headquarters has a fully equipped 1,300-square-foot laboratory with a separate wet laboratory for artifact processing and a dry laboratory for artifact analysis. All of our field directors are Organizational Safety and Health Administration (OSHA)–certified Competent Persons, and archaeological staff regularly attend professional events and training seminars to stay up-to-date on current archaeological news, laws, regulations, and research topics.

Services include:

    • Class I, II, and III Cultural Resource Surveys
    • Archaeological Surveys and Background Review
    • Historic Properties Treatment Plans
    • National Register of Historic Places (NRHP) Eligibility Testing
    • Archaeological Site Mitigation through Data Recovery Excavations
    • Construction Monitoring
    • National Historic Preservation Act (NHPA) Section 106 Consultation with Tribes and Agencies
    • Archival Research for Historic Sites
    • Excavation and Repatriation of Human Remains
    • Artifact Analysis and Curation
    • Tribal Liaison
    • GIS Mapping

Cascada Data Recovery Project in Marana, Arizona

For more information on our Cultural Resources operations or to inquire about obtaining our services, please contact:

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Division Director
Environmental Planning & Cultural Resources
(800) 887-0847

"Southwest Gas Corporation has used Tierra Right of Way Services for cultural and environmental services in southern Arizona for the past 15 years. We have been highly satisfied with the quality of service, rapid turnaround, and customized reports. I have found them to be very responsive to our needs and concerns."

~ Melanie Rice, Manager, Operations 
Southwest Gas Corporation

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