This layer package shows sites where hydrology data are collected for <a href="http://waterdata.usgs.gov/nwis">the USGS National
Water Information System (NWIS)</a> within the Southern Rockies LCC. The sites include surface water sites, groundwater sites,
springs sites and atmospheric sites. The locations were downloaded using the <a href="http://txpub.usgs.gov/snapshot/">USGS
Web Services Snapshot tool</a>, an ArcGIS add-in tool that allows users to query the NWIS database and download subsets of
hydrological data into geodatabases. Each of these gage locations has associated data in NWIS, accessible through the NWIS
website or with the Snapshot tool. The layer's attribute table contains the NWIS inventory URL for each gage location. <br
/> <br /> There is also an <a href="http://maps.waterdata.usgs.gov/mapper/index.html">online map</a> of NWIS gages. <br />
<br /> <a href="http://pubs.usgs.gov/fs/2011/3141/">Citation for Snapshot</a>: Holl, Sally, 2011, U.S. Geological Survey Community
for Data IntegrationNWIS Web Services Snapshot Tool for ArcGIS: U.S. Geological Survey Fact Sheet 20113141, 2 p.