Grand River Institute (GRI) is a small business located in Grand Junction, Colorado. Since 1978, GRI has been engaged in archaeological, historical, and environmental work in both Utah and Colorado.

GRI personnel have completed inventory projects that have ranged from single oil/gas well locations to tracts of several thousand acres, and monitoring projects that have included excavations around historic buildings, well pad construction, and pipeline trenching. Clients have included oil and gas developers; pipeline, mining and railroad companies; seismic businesses; engineering firms; generation and transmission associations; local governments and various federal agencies.

Principle Investigator, Carl E. Conner, has held cultural resource permits from the Bureau of Land Management since 1975. He has extensive experience in cultural resource project coordination, which facilitates rapid and accurate completion of any sized undertaking. Along with staff archaeologists Curtis Martin and Barbara Davenport, GRI personnel have a combined total of over 50 years experience in contract archaeology. Currently, GRI holds Bureau of Land Management, USDA Forest Service, and State permits in Colorado and Utah.