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Hi,

May be of interest; the following are from responses I have sent out
recently to reference/research inquiries about U.S. Geological Survey
maps here in the Denver library:

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Putting the Planet on the Map:
http://www.usgs.gov/blogs/features/usgs_top_story/putting-the-planet-on-the-map/?from=title

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Latest version of USGS Fact Sheet:
US Topographic Maps for the Nation:
http://pubs.usgs.gov/fs/2013/3093/pdf/fs2013-3093.pdf

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USGS TopoView, map interface search: http://ngmdb.usgs.gov/maps/TopoView/

USGS Topographic Maps, text search:
http://geonames.usgs.gov/pls/topomaps/f?p=262:1:3738752340142108

USGS thematic maps, map interface search:
http://ngmdb.usgs.gov/maps/mapview/

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To find aerial and satellite imagery:
EarthExplorer: http://earthexplorer.usgs.gov/
[ tips available at:
http://earthobservatory.nasa.gov/blogs/elegantfigures/2013/05/31/a-quick-guide-to-earth-explorer-for-landsat-8/
]

Sources by Topic:
Aerial Photography: http://eros.usgs.gov/aerial-photography
Digitized Maps: http://eros.usgs.gov/digitized-maps
Elevation Products: http://eros.usgs.gov/elevation-products
Land Cover: http://eros.usgs.gov/land-cover
Satellite Imagery: http://eros.usgs.gov/satellite-imagery

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GIS sources:
National Map Viewer: http://viewer.nationalmap.gov/viewer/
Mineral Resources: http://mrdata.usgs.gov/
Energy Resources:  http://energy.usgs.gov/Tools/EnergyDataFinderSplash.aspx
Water Resources: http://water.usgs.gov/maps.html

Also, Thematic Maps (Geology, Hydrology, Hydrogeology, and so on) have been
scanned and are available as geotiffs from within the USGS National
Geologic Map Database catalog:
http://ngmdb.usgs.gov/ngm-bin/ngm_compsearch.pl

search = Colorado, geotiff and Google Earth files:
http://ngmdb.usgs.gov/ngm-bin/ngm_search_dbi.pl?src_page=ngm_compsearch.pl&searchopt=search&key_search=&Title=Colorado&Author=&Map+Number=&g_center=&g_zoom=&cqtype=None&State=&bc_ul=&bc_lr=&publisher_list=usgs&scale=&scale2=&datebgn=&dateend=&format=digital&dig_sub=gtiff&dig_sub=&dig_sub=&dig_sub=

Selected examples:
*Geologic map of the Jefferson quadrangle, Park and Summit Counties,
Colorado*
http://ngmdb.usgs.gov/Prodesc/proddesc_10880.htm
- to preview how the map falls on Earth, select the globe near the bottom
left corner of the Google index map
- note the map is available to download in four formats: geopdf, geotiff,
jpeg, and Google Earth KMZ files

*Geologic map of the Denver West 30' x 60' quadrangle, north-central
Colorado*
http://ngmdb.usgs.gov/Prodesc/proddesc_84408.htm
- to preview how the map falls on Earth, select the globe near the bottom
left corner of the Google index map
- note the map is available to download in four formats: geopdf, geotiff,
jpeg, and Google Earth KMZ files

search = Colorado and GIS files:
http://ngmdb.usgs.gov/ngm-bin/ngm_search_dbi.pl?src_page=ngm_compsearch.pl&searchopt=search&key_search=&Title=Colorado&Author=&Map+Number=&g_center=&g_zoom=&cqtype=None&State=&bc_ul=&bc_lr=&publisher_list=usgs&scale=&scale2=&datebgn=&dateend=&format=digital&dig_sub=&dig_sub=&dig_sub=&dig_sub=data

*Petroleum systems and assessment of undiscovered oil and gas in the Denver
Basin Province, Colorado, Kansas, Nebraska, South Dakota, and Wyoming --
USGS Province 39*
http://ngmdb.usgs.gov/Prodesc/proddesc_83138.htm
-- report web site: http://pubs.usgs.gov/dds/dds-069/dds-069-p/


search = Texas and GIS files:
http://ngmdb.usgs.gov/ngm-bin/ngm_search_dbi.pl?src_page=ngm_compsearch.pl&searchopt=search&key_search=&Title=Texas&Author=&Map+Number=&g_center=&g_zoom=&cqtype=None&State=&bc_ul=&bc_lr=&publisher_list=usgs&scale=&scale2=&datebgn=&dateend=&format=digital&dig_sub=&dig_sub=&dig_sub=&dig_sub=data

Example:
*Water-level altitudes 2012 and water-level changes in the Chicot,
Evangeline, and Jasper aquifers and compaction 1973-2011 in the Chicot and
Evangeline aquifers, Houston-Galveston region, Texas*
http://ngmdb.usgs.gov/Prodesc/proddesc_97356.htm
-- report web site: http://pubs.usgs.gov/sim/3230/

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Google Earth files:

Earthquake Hazards Program:
http://earthquake.usgs.gov/learn/kml.php

Watersheds:
http://edna.usgs.gov/watersheds/kml_index.htm

Minerals, Mineral Occurrences:
http://mrdata.usgs.gov/mrds/

Geologic Maps:
http://mrdata.usgs.gov/geology/state/

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Lastly, this came up a few times this week about the location of the USGS
Seamless Server - the USGS Seamless Server went off-line a few years ago;
please refer to "The National Map Viewer" to access the seamless content:
http://nationalmap.gov/viewer.html

Let me know if you are looking for additional information;

Enjoy the day!
Emily

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Emily Wild
Librarian (Physical Scientist)
U.S. Geological Survey
Denver Library
Box 25046, MS 914
Denver Federal Center
Denver, CO 80225-0046
ph: (303) 236-1003
[log in to unmask]

USGS Libraries: http://library.usgs.gov
Tutorials: http://tinyurl.com/lh3tmua
Professional Page: http://profile.usgs.gov/ecwild
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