This report describes a science strategy for the geologic activities of the U.S. Geological Survey (USGS) for the years 2010-2020. It presents six goals with accompanying strategic actions and products that implement the science directions of USGS Circular 1309, "Facing Tomorrow's Challenges--U.S. Geological Survey Science in the Decade 2007-2017." These six goals focus on providing the geologic underpinning needed to wisely use our natural resources, understand and mitigate hazards (highlight 2) and environmental change, and understand the relationship between humans and the environment. The goals emphasize the critical role of the USGS in providing long-term research, monitoring, and assessments for the Nation and the world. Further, they describe measures that must be undertaken to ensure geologic expertise and knowledge for the future.