"The Midwest GeoSciences Group's "Field Guide for Soil and Stratigraphic Analysis" is hands down the premium tool for logging and characterizing field samples using the USCS. I recently moved and had to resort to using a different logging guide for my drilling program. I learned quickly that the guides don't compare. The Midwest GeoSciences "Field Guide for Soil and Stratigraphic Analysis" is the most intuitive, descriptive, and complete guide out there. I will never log again without it!"
- Brent Everett, PG, Senior Hydrogeologist