United States Geological Survey Yearbook

activities additional Administration agencies Alaska analysis aquifer areas assessment Assistant Authority base Basin Board Bureau California cartographic caused Central Chief City City of w coal collected Commission completed Conservation contamination continued Control cooperation Coordination County cover Department deposits discharge distribution District w Division earthquake Eastern Energy Environmental estimated Federal Federal agencies feet flood Florida flow formed funds Geologist Government ground ground-water hazards high-altitude hydrologic International Island Lake land landslides major Management maps marine ment million mineral resources models National Center Natural needs occurred Office Operations organic Park percent petroleum photography Planning potential problems processes Public Puerto Rico record Regional result River rocks scale scientific Searles Lake Service sources South spring standard stations STOP studies surface technical tion Transportation U.S. Geological Survey United Valley Volcano waste Water Resources Western Wilderness zone