| MapMart is a fantastic source
all kinds of data, both for the US and worldwide. Make this your source
for aerial and satellite imagery, scanned topographic
maps, and
vector street maps. |
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Spatial Energy brings vast industry experience and
knowledge and is the leading provider of premium image collection, image processing,
and image analysis services for the oil and gas industry. Preferred partnerships with
leading satellite and aerial data providers enable Spatial Energy to offer the
industry’s most extensive collection of high resolution imagery, including
DigitalGlobe’s QuickBird satellite, GeoEye’s IKONOS and OrbView-3 satellites, SPOT
and UltraCam.
Imagery data from Spatial Energy is provided through Spatial On Demand,
an online service providing access to the energy industry’s largest archive of
imagery data from leading satellite and aerial providers. Through Spatial On Demand,
users can quickly and easily search for available imagery and order it online.
The imagery can then be imported, viewed, manipulated and analyzed using leading
desktop solutions such as Global Mapper, Google Earth, ESRI ArcView, Virtual Earth,
and others.
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| The USGS Geographic Data Download site is
the central repository for USGS 1:250K DEMs (digital elevation
model), USGS 1:100K and 1:24K DLGs (Digital Line Graphic), and
USGS LULC (land use and land cover) data. Of course, all of this
data is ABSOLUTELY FREE for download. |
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The USGS Seamless Data Distrubtion Center
provides access to several USGS data sets, including the following:
- NED (National Elevation Data Set) - supplies 30-m resolution
seamless elevation data for the entire continental US
- Urban Areas High-Resolution Orthoimagery - supplies 1 foot
resolution aerial imagery for the largest urban areas in the US
- SRTM (Shuttle Radar Topography Mission) - supplies high resolution
elevation data for much of the earth
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| The 2006 Tiger/Line page offers individual
counties from the 2006 Tiger/Line vector data set for free download. This
is an excellent source of detailed vector roadway data for the United States.
You can also purchase the entire 2004 Tiger/Line data set on DVD from us. |
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| The NGA Digital Nautical Charts site offers
a large selection of marine charts in DNC format for free download. DNC
charts can be viewed in Global Mapper v6.00 and above. |
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| The NOAA Electronic Navigational Charts site
offers a large selection of NOAA marine charts in S-57 format for free download.
S-57 charts can be viewed in Global Mapper v6.00 and above. |
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| The NGA Raster Roam site offers several NIMA
data sets for free download, included VMAP levels 0 and 1, DTED level 0,
ONC, and TPC data. All data available at this site can be loaded by Global
Mapper v6.00 and above. |
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| The MapAbility VMAP1 Downloads page provides
a simpler alternative to the NGA Raster Roam site for obtaining VMAP level
1 data. All data available at this site can be loaded by Global Mapper v6.00
and above. |
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| The GIS Data Depot offers a wide variety of
data, including 1:24K USGS DEM data for the US, 1:24K USGS DRGs (scanned
topo maps), and a large selection of imagery and vector data products. |
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| The updated National Atlas of the USA is designed
to provide a reliable summary of national-scale geographical information.
Though it cannot provide detailed map information, the Atlas directs users
to other sources for this information. Most data is available in Shapefile,
GeoTIFF, or SDTS vector format, all of which Global Mapper supports effortlessly. |
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| GeoBase Canada provides a large assortment
of FREE data for Canada, including Landsat-7 imagery, 1:50K and 1:250 CDED
elevation data, a National Road database in Shapefile format, and the Canadian
Geographic Names data set in Shapefile format. |
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| This NASA site provides FREE
LandSat imagery for most of the Earth's land masses circa 1990/2000.
The data is provided as MrSID files which can be downloaded and loaded directly
into Global Mapper. |
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| The CGIAR Consortium for Spatial Information
provides FREE 90-m (3 arc second) elevation data
for the entire world! CGIAR-CSI created this data set based on the SRTM
data set and then processed it to fill in voids. The data is also available
through a Google
Earth interface at http://www.ambiotek.com/topoview. |
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| Satellite Geodesy provides FREE
30-arc-second elevation data with bathymetry for the entire world!
The data was created based on the SRTM-30 data set, then holes were filled
with GTOPO-30 data and bathymetry from various sources was used to replace
the ocean areas. Just download the .srtm.gz files from the SRTM-30+ FTP
link and load them directly into Global Mapper v6.07 and later. |
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| MadMappers is the best site is the best source
of mostly free raster, vector, and elevation data for
Africa. If you need data for the African continent, check here first
since they probably have it and you might be able to download it for free. |
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