Introductory technical guidance for civil engineers, geotechnical engineers and other professional engineers and construction managers interested in field explorations for foundations for buildings and other infrastructure features. Here is what is discussed: 1. INTRODUCTION, 2. PUBLISHED SOIL AND GEOLOGICAL MAPS, 3. REMOTE SENSING DATA METHODS, 4. GEOPHYSICAL METHODS, 5. SOIL BORINGS AND TEST PITS, 6. SAMPLING,...