Of all the STEM fields (science, technology, engineering and math), geology may be the one science where it is perhaps the most instructive and imperative to do your most significant work outside of an office or lab. As the study of the Earth and its processes, you will benefit greatly from time spent in the field, observing, measuring and studying the movement and interplay between soil, rock, water, environmental factors and engineered works.
Field work is an opportunity to practice a variety of techniques that will greatly assist you in your career. You will learn how to effectively take notes and measurements, hand-draw maps and sketches, use GIS or drawing software to create digitized versions of your mapping, take relevant photos to record your observations, synthesize findings and create a thorough field report.