USGS Activities Photo Index
Picture 1 - Microbiologist analyzing tissue samples in a laboratory, see Western Fisheries Research Center 
Picture 2 - Cartographer measuring information from a topographic map, see Finding and Ordering USGS Topographic Maps
Picture 3 - Cartographic technician using a precision level to determine elevations
Picture 4 - Hydrologic technician analyzing water sample, see National Water-Quality Assessment (NAWQA) Program
Picture 5 - Students employees and geologists unloading a float plane at a remote field site.
Picture 6 - Hydrologist preparing a current meter for stream measurements
Picture 7 - Biologist measuring the diameter of a tree 
Picture 8 - Hydrologic technician drilling through ice to measure streamflow, see How streamflow is measured
Picture 9 - Hydrologist collecting streamflow data, see Real-Time Water Data
Picture 10 - USGS scientists conducting research from a vessel offshore of the Alaskan coast
Picture 11 - Biologists using radio equipment to track coyotes
Picture 12 - Biologist sampling a spruce log for dendrochronology
Picture 13 - Avian biologist using a net to collect shorebirds,see Midcontinent Ecological Science Center 
Picture 14 - Cartographer using stereoplotter to make a topographic map, see Geospatial Data, Information, and Related Products 
Picture 15 - Geologist using a probe to sample molten lava, see U.S. Geological Survey Volcano Hazards Program
Picture 16 - Geologist using GPS equipment to record sample locations, see Global Positioning System Data 
Picture 17 - Marine scientists installing a data logger in a tidal marsh, see Coastal and Marine Geology Program
Picture 18 - Marine biologist examining coral growth, see Center for Coastal Geology
Picture 19 - Marine scientist retrieving an integrated water sampler from the continental shelf, see Western Region Coastal and Marine Geology
Picture 20 - Hydrologists collecting water samples for analysis, see Activities in the Chesapeake Bay Region 
Picture 21 - Scientists working at the remote location of the South Pole field station
Picture 22 - Hydrologists lowering a sampling device from a suspended platform 
Picture 23 - Geologist preparing wooden stakes for measuring coastal erosion
Picture 24 - Physical scientist collecting a ground-water sample from a well, see What is Ground Water? 
Picture 25 - Students learning about water analysis, see Water Science for Schools
Picture 26 - Geologists measuring resistivity along vegetation-covered beach dunes
Picture 27 - Cartographer digitizing information from a topographic map, see USGS Spectroscopy Lab
Picture 28 - Student employee monitoring fish habitat
Picture 29 - Organic chemist creating chemical models of contaminants, see Columbia Environmental Research Center 
Picture 30 - Students at Haskell Indian Nations University digitizing data
Picture 31 - Hydrologist collecting snowpack samples for chemical analysis, see Water Resources of Alaska - Glacier & Snow Program 
Picture 32 - Hydrologist installing evaporation sensors, see Great Salt Lake, Utah 
Picture 33 - Geophysicist setting up ground penetrating radar equipment
Picture 34 - Student employee collecting a sample to be analyzed for water-quality, see National Water Quality Laboratory 
Picture 35 - Computer specialist advising a computer system user
Picture 36 - Resource technician assisting a customer
Picture 37 - Volcanologist collecting volcanic gas samples, see Hawaiian Volcano Observatory
Picture 38 - Geologist photographing a recent lava flow, see U.S. Volcano Disaster Assistance Program
Picture 39 - Geologist sampling surface algae in a stream, see Eastern Mineral Resources
Picture 40 - Student employee surveying a growing lava flow, see Hawaiian Volcano Observatory's "Volcano Hazards". 
Picture 41 - Cartographer recording observations on an aerial photograph
Picture 42 - Marine scientists using push cores to collect sediment samples, see South Florida Ecosystem
Picture 43 - Biologists examining samples of underwater vegetation
Picture 44 - Student employee making geophysical measurements
Picture 45 - Geologist using a spectrometer to analyze the composition of volcanic gas, see Virtual Tour of Volcanoes and Earthquakes
Picture 46 - Physical science technician monitoring volcanic eruption tremors, see Cascades Volcano Observatory
Picture 47 - Geologists collecting rock samples in a remote location
Picture 48 - Environmental scientist instructing an elementary school student on aquatic ecology, see Columbia Environmental Research Center
Picture 49 - Cartographer conducting a survey in the middle of a penguin rookery 
Picture 50 - Fisheries biologists examining a rarely seen, long-nosed gar, see Columbia Environmental Research Center 
Picture 51 - Aquatic ecologist preparing sediment samples, see Columbia Environmental Research Center information. 
Picture 52 - Chemist analyzing samples for heavy metal contaminants, see Columbia Environmental Research Center 
Picture 53 - Wildlife biologist setting a screen trap to capture water snakes, see Columbia Environmental Research Center 
Picture 54 - Wildlife biologist preparing a snake for examination