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U.S. Geological Survey

- Science Explorer
  
  Biology and Ecosystems
  
  Climate
  
  Coasts
  
  Energy
  
  Environmental Health
  
  Geology
  
  Information Systems
  
  Maps and Mapping
  
  Methods and Analysis
  
  Minerals
  
  Natural Hazards
  
  Ocean
  
  Planetary Science
  
  Science Technology
  
  Water
- Mission Areas
  
  Core Science Systems
  
  Ecosystems
  
  Energy and Minerals
  
  Natural Hazards
  
  Water Resources
- Programs
- Regions
  
  Northeast Region
  
  Southeast Region
  
  Midcontinent Region
  
  Rocky Mountain Region
  
  Southwest Region
  
  Alaska Region
  
  Northwest/Pacific Islands Region
- Data
  
  Data Management
  
  Data Releases
  
  Real-time Data
  
  All Data
- Maps
  
  Map Releases
  
  Topographic (Topo) Maps
  
  Volcanic Maps
  
  All Maps
- Multimedia Gallery
  
  Audio
  
  Before and After Images
  
  Images
  
  Slideshows
  
  Stereograms
  
  Videos
  
  Webcams
  
  All Multimedia
- Publications
- Web Tools
  
  Alert and Notification Services
  
  APIs
  
  Data Access Tools
  
  Data Analysis Tools
  
  Data Visualizations
  
  Interactive Maps
  
  All Web Tools
- News Releases
  
  National News Releases
  
  State News Releases
  
  All News Releases
- I'm a Reporter
  
  Earthquake Questions
  
  Request Footage
  
  Multimedia Gallery
  
  Congressional
- Headquarters
  
  12201 Sunrise Valley Drive Reston, VA 20192
  
  703-648-5953
  
  Geology and Hydrology of the USGS Site
  
  USGS Woodland and Rock Garden Walks
- Locations
- Staff Profiles
- Social Media
- Careers
- Contact Us
  
  1-888-392-8545
  
  Email
  
  Web Chat
  
  USGS Store 1-888-275-8747
- Organization
  
  Mission Areas
  
  Programs
  
  Regions
  
  Science Centers
  
  Observatories
  
  Laboratories
  
  Science Support Offices
- Doing Business
  
  Acquisitions
  
  Contracts and Grants
  
  Partners and Cooperators
  
  Building Partnerships
- Emergency Management

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U.S. Geological Survey

- Science Explorer
- Mission Areas
- Programs
- Regions
- Data
- Maps
- Multimedia Gallery
- Publications
- Web Tools
- News Releases
- I'm a Reporter
- Headquarters
- Locations
- Staff Profiles
- Social Media
- Careers
- Contact Us
- Organization
- Doing Business
- Emergency Management