Related to library inquiries, much of the country's population is experiencing flooding or drought conditions at the moment, the USGS information sources may be of interest:

And also, the Denver Federal Center farmers market is back with plenty of food trucks for lunch and tons of local produce : http://www.gsa.gov/portal/content/155145 

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Floods: http://water.usgs.gov/floods/

Animation of flood and high flow condition maps for June 2015 : http://waterwatch.usgs.gov/index.php?id=ww_animation_flood

WaterWatch Streamflow Map : http://waterwatch.usgs.gov/index.php?id=flood-gmapFlood Inundation Mapping (FIM) Program : http://water.usgs.gov/osw/flood_inundation/

Google Earth Streamgages KML Files for each State, includes real-time streamflow option to download  : http://waterwatch.usgs.gov/index.php?id=stategage

Note, when I help people in the library, I show them how to layer all the USGS data, such as maps through time, geologic maps, hydrologic maps, streamgages, earthquake events, oil/gas well maps, mineral maps, and so on, in Google Earth, which they can save to their desktop/laptop for meetings and outreach events...

 

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Droughts: http://waterwatch.usgs.gov/?m=dryw
USGS Cumulative Streamflow Hydrograph Builder: 

http://waterwatch.usgs.gov/index.php?id=drought_cumflowComparison of Streamflow MapsColorado high waters take toll; two dead, two more presumed deadRiver level to be eased TuesdayKayaker killed in accident was popular Snowmass ski instructor