GEONOR: your source for field vane shear and CPT apparatus; geotechnical, structural, vibration monitoring and meteorological instrumentation; high-level application engineering support for our equipment.
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Geoengineer Group
Partially affiliated with the Geoengineer.org website, this Yahoo! Group has over 900 members that submit geotechnical questions for the entire membership to respond on. Visit Geoengineer Group
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California Geotechnical Engineers Association
With over 100 member firms from both northern and southern California, CGEA is California’s premier organization for geotechnical firms. Visit California Geotechnical Engineers Association
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Geotehnic Student
A group for geotechnical students in Iran Visit Geotehnic Student