Visible representations of objects produced by optical or spectral instruments or cameras.
Landslides learning & education [ More info] A wide variety of explanatory and educational resources about landslides and their relationship with earthquakes and storms, and preparedness. Includes glossary and photos.
Lewis and Clark and the U.S. Geological Survey in North Dakota [ More info] Homepage linking the historic journey of Lewis and Clark and the research of the USGS in the same region with links to mapping history, remarkable points on the Missouri River, educational activities, photo gallery, and publications.
Mars Viking hemisphere point perspectives [ More info] Mosaics of the Martian hemispheres created by the USGS from Viking Orbiter images.
Mauna Loa current activity [ More info] Current activity of Mauna Loa Volcano with news, GPS data, electronic tiltmeter data, and current seismicity plus links to long term monitoring.
Mauna Loa, Earth's largest volcano [ More info] Current activity, hazards, and history of eruptions of Mauna Loa.
Mississippi Fan internet map [ More info] Mississippi River alluvial fan interactive map with GIS data and imagery depicting core sites, depositional and channel interpretation, Gloria and SeaMarc datasets.
Missouri River InfoLink: a clearinghouse of Missouri River information [ More info] Portal for Missouri River Infolinks, a clearinghouse to multiple links giving Missouri information, photo gallery, river weather forecast, projects and features, maps, meetings, history, and science research.
Moderate Resolution Imaging Spectroradiometer (MODIS) Overview [ More info] Includes 500 meter surface reflectance and vegetation indices, which can be used to study change in energy balance and vegetation over time.
Monitoring floods and fires during the summer of 2011--The value of the Landsat satellite 40-year archives [ More info] Examples showing the use of historical satellite imagery for assessing the extent and severity of landscape hazards such as fires and floods.
Multibeam mapping of selected areas of the outer continental shelf, northwestern Gulf of Mexico: data, images, and GIS [ More info] Report provides the multibeam bathymetry and acoustic backscatter data, images, FGDC-compliant metadata, and GIS data from the 2002 surveys and 1997 USGS surveys of the Gulf.
Alphabetical Index of Topics
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