Cultural Resources Management, Archaeology, Section 106 compliance, preservation, historic research, Phase I archaeological survey, Phase II site testing/evaluation, Phase III excavations, data recovery, mitigation, GIS, historic research, NRHP evaluation

Engineering, Construction, Humanitarian, Staffing

Drilling Oil and Gas Wells, Support Activities for Oil and Gas Operations, Support Activities for Coal Mining, Support Activities for Metal Mining, New Single-Family Housing Construction (except Operative Builders)

Drilling Oil and Gas Wells, Support Activities for Oil and Gas Operations, Support Activities for Coal Mining, Support Activities for Metal Mining, Support Activities for Nonmetallic Minerals (except Fuels) Mining

Forest Nurseries and Gathering of Forest Products, Logging, Drilling Oil and Gas Wells, Support Activities for Coal Mining, Water and Sewer Line and Related Structures Construction

Support Activities for Coal Mining, Water and Sewer Line and Related Structures Construction, Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction

Support Activities for Oil and Gas Operations, Support Activities for Coal Mining, Support Activities for Metal Mining, Support Activities for Nonmetallic Minerals (except Fuels) Mining, Hydroelectric Power Generation