This book offers a comprehensive overview of how the Internet of Things is reshaping the Management of Soil, Geotechnical Engineering, and Environmental Observations. It explores extensive bibliographic research, examples and case studies to provide nuanced information on improving the soil, evaluating its structural health, and forecasting geological disasters using IoT. Further, it equips the reader with the necessary tools to apply IoT solutions to farming processes and increase the effectiveness of construction. By delving into the new developments within IoT sensors, geotechnical monitoring, and data analysis, the authors provide practical approaches to measuring soil humidity, assessing geological characteristics, and obtaining data through automation. It concludes with a call to pave the way for wide-scale adoption of IoT for environmental supervision, construction activity, and precision farming. This is a valuable resource for researchers, practitioners, engineers, and students of IoT-based Soil Management, Geotechnical Engineering, Agriculture, Construction, and Environmental science.