![]() Most data are maintained in an Albers projection CALIFORNIA – California Spatial Information Library (CASIL).The name GeoStor refers to a comprehensive, web-based geodata delivery system. ARKANSAS – GeoStore from the Center for Advanced Spatial Technologies (CAST) at the University of Arkansas.ARIZONA – Arizona Land Resource Information System (ALRIS).ALASKA – Alaska Geospatial Data Clearinghouse.ALABAMA – The Geological Survey of Alabama (GSA) with support from the Federal Geographic Data Committee (FGDC) has developed and maintains a National Spatial Data Infrastructure (NSDI) Isite Node of the National Geospatial Data Clearinghouse that houses metadata and geospatial data sets archived by the GSA and State Oil and Gas Board. ![]() Which quads do I need? How can I translate and/or view the data? Where can I download the data? Read on for some answers to these questions and more. ![]() Before you begin the search, make sure your familiar with some of the pieces of information we’ve provided below. Perhaps you need DRGs, maybe some DEMs, or maybe even some DOQQs. NOTE: See also the following for additional – So, you need to work with USGS data. NEW: 2009 State GIS Spatial Data Clearinghouse Directory All links have been verified and/or updated accordingly in an effort to provide the most up-to-date catalog of data repositories & clearinghouses. In order to provide the GISuser with one-click access to various State GIS and geospatial data repositories and clearinghouses, please consult this current listing of official State GIS Data Clearinghouses and data repositories.
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