Columbia Geotechnical Associates Inc.
Quaternary Geology, Geoarchaeology and Cultural Resources Services
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Welcome to CGA Inc. 

We are a Cultural Resources Management company specializing in geoarchaeological applications and research.
 
CGA Inc. retains a staff with proven experience in the preparation of comprehensive cultural resource studies and surveys.
 
We provide assistance in the preparation of environmental documents to ensure compliance with the National Historic Preservation Act as well as the preparation of state-level cultural resources documentation.

We are able to conduct a variety of studies ranging from large scale archaeological and cultural resource surveys to focused geoarchaeological analysis.

We have experience working with the majority of state and federal agencies and with private developers to complete the full range of cultural resources services.

In addition to geoarchaeology we have excellent experience conducting landscape-scale geologic mapping and interpretation across the pacific northwest.
Our expertise also includes soils analyses and paleopedology.

 

Columbia Geotechnical Associates Inc.

 
CGA Inc. News
03/05/09
CGA Inc. is working with Geoengineers to develop a statewide GIS model of archaeological sites in Washington State.
05/05/09
Specialist studies. We are working with AMEC Environmental to provide a geoarchaeological analysis of immediately post-glacial cultural sites in the Puget Sound.