U.S. Department of the Interior

Assessing Total Nitrogen in Surface-Water Samples?Precision and Bias of Analytical and Computational Methods

Assessment of Energetic Compounds, Semi-volatile Organic Compounds, and Trace Elements in Streambed Sediment and Stream Water from Streams Draining ... and Impact Areas, Fort Riley, Kansas, 2007?08

Isopach and Isoresource Maps for Oil Shale Deposits in the Eocene Green River Formation for the Combined Uinta and Piceance Basins, Utah and Colorado

The Novarupta-Katmai Eruption of 1912?Largest Eruption of the Twentieth Century: Centennial Perspectives

A Review and Synthesis of the Scientific Information Related to the Biology and Management of Species of Special Concern at Cape Hatteras National Seashore, North Carolina

Podiform Chromite Deposits-Database and Grade and Tonnage Models

Water-Quality, Bed-Sediment, and Biological Data and Statistical Summaries of Long-Term Data for Streams in the Clark Fork Basin, Montana

Methods for Estimating Selected Low-Flow Statistics and Development of Annual Flow-Duration Statistics for Ohio

Topographic Change Detection at Select Archeological Sites in Grand Canyon National Park, Arizona, 2007?2010

Analytical Results for Agricultural Soils Samples from a Monitoring Program Near Deer Trail, Colorado

Valley Forge

Estimation of Baseline Daily Mean Streamflows for Ungaged Locations on Pennsylvania Streams, Water Years 1960?2008

Cold War in South Florida

Audio-Magnetotelluric Survey to Characterize the Sunnyside Porphyry Copper System in the Patagonia Mountains, Arizona

Yield of Bedrock Wells in the Nashoba Terrane, Central and Eastern Massachusetts

Shoreline Surveys of Oil-Impacted Marsh in Southern Louisiana, July to August 2010

Sediment Loads and Yield, and Selected Water-Quality Parameters in Clear Creek, Carson City and Douglas County, Nevada, Water Years 2004-07

Groundwater Quality in the Upper Hudson River Basin, New York, 2007

Whole-Rock Analyses of Core Samples from the 1988 Drilling of Kilauea Iki Lava Lake, Hawaii

Monitoring Plant Vegetation Responses to Elk Management in Rocky Mountain National Park

Occurrence and Potential Transport of Selected Pharmaceuticals and Other Organic Wastewater Compounds from Wastewater-Treatment Plant Influent and ... Canal Systems in Miami-Dade County, Florida

Collection, Processing, and Interpretation of Ground-Penetrating Radar Data to Determine Sediment Thickness at Selected Locations in Deep Creek Lake, Garrett County, Maryland, 2007

Streamflow and Water-Quality Conditions Including Geologic Sources and Processes Affecting Selenium Loading in the Toll Gate Creek Watershed, Aurora, Arapahoe County, Colorado, 2007