I recently spent two weeks down in eastern California completing a geology field course. The course was a requirement for an earth sciences degree and introduced me to various field methods. The best part of the trip was spending each day in the field in one of the coolest places in the county. The White Mountains and Sierra Nevada were incredible.
Creating geological maps and cross sections was really challenging but also rewarding. I think I learned more in the field in two weeks than I did all of last school year. We also got to take a side trip to Yosemite as well as the Ancient Bristlecone Pine Forest.