Busch Geotechnical Consultants
BGC's Former Arcata office
BGC's Harbor office
Services for Realtors, Homeowners, and Developers
Services for Design Professionals
Past Clients & Jobs
Photo Examples (working)
Firms, Cities, Counties
Water Tank Jobs
Rocks on LSD
Updated List of Sand Samples
This page updated July 11, 2017.
Sebastian, OR, differential weathering.
Tightly-folded, thin-bedded, polychromatic, deep-water cherts, Dothan Formation
Del Norte Co., CA
Monochromatic chert cut by quartz veins, Broken Formation
North Bank, Chetco River,
Northwest-dipping, intensely fractured, metasedimentary rocks, Dothan Formation
Trinidad, CA, Coastline South of Patricks Point
Bowling Ball Concretions weathering out from a medium-grained Franciscan Formation Sandstone
Tumbled Chert from Beaches Near Brookings, Oregon
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