Video Animation for Archaeology

Schematic Simulation of the Infilling and Recession of
Ancient Lake Cahuilla, AD 1600-1700
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Ground Penetrating Radar (GPR) animation
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Ground Penetrating Radar (GPR) animation
Press "PLAY" button to start video

Ground Penetrating Radar (GPR)

ASM has also innovated the use of Ground Penetrating Radar (GPR) to locate and identify the horizontal/vertical extend of buried features or components of an archaeological sites.
ASM uses on-the-ground observations (from surface and excavation work) and sometimes historic documentation to help determine the location and extent for GPR surveys. Once the area is identified and a grid established for examination, a GPR technician traverses the examination area using a Geophysical Survey Systems SIR-3000 (Subsurface Interface Radar) unit with a 400-MHz shielded antenna. Resulting data can then be processed in the field and used to guide subsequent excavation work.

A Full Range Of Cultural Resource Related Services

Architectural History
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Field Reconnaissance and Surveys
Research Designs
Significance and National Register of Historic Places Eligibility Evaluations and Nominations
Section 106 Compliance
Archaeological Sampling and Testing
Artifact Processing and Curation
Data Recovery
Construction Monitoring
Archival Studies
Native American Consultation and Ethnography
Preservation Planning
HABS/HAER/HALS

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The Natural and Cultural History of Ancient Lake Cahuilla.

For thousands of years, the Colorado River periodically broke through its banks in the delta and filled the Salton Trough. The resulting freshwater lake, known as Lake Cahuilla, Lake LeConte, or the Blake Sea, was 100 miles long, 35 miles wide, and over 300 feet deep, covering an area of 1.24 million acres. The dynamic environmental changes produced by the succession of infillings and recessions and the varied wetland habitats that the lake produced in one of the hottest and driest deserts in North American attracted numerous Native Americans from diverse origins and cultural orientations, leaving behind a rich archaeological record.

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