Iowa Geographic Image Map Server
The Iowa Geographic Image Map Server (OrthoServer) provides a wide variety of image products via download or through web map services (WMS). Data coverage includes the entire state of Iowa. Products include:
2004 - 2011, 2013 - 2021 natural color and infrared photos
1930s - 1980s decadal gray scale photos
Hillshade from LiDAR data, 2007-2010 and 2019-2021
Early 1990s gray scale photos
1:24000 and 1:100000 topographic maps (USGS DRGs)
1992 and 2002 land cover/ land use maps
Public Data via the Web
The GIS Facility provides data produced by the DNR and data developed by research on campus downloadable through ISU's CyBox storage service. To obtain this data, visit here. The data is zipped so you will need to download the data onto your machine and unzip.
Restricted Data Access - Public Data
The GIS Facility provides data produced by the DNR and data developed by research on campus. This public data can be accessed directly from on campus by those people with an ISU username or from off campus, using the VPN. To connect to the data you have to map a path to the data location. Create a connection in My Computer (not a browser) to:
and be sure to specify your ISU username, if you have not logged in to your machine with that name. If you connect from off campus, you will need to use the VPN method, explained below.
If you have a Mac, the process is as follows:
Go>Connect to Server menu in the Finder and then entering the following URL:
After a connection is made, you will need to provide your ISU credentials.
Natural Resources Geographic Information System (NRGIS) Library
The DNR's NRGIS Library has been retired.
The Library's data has been merged into Iowa Geodata (Click Here), the State's clearinghouse of geospatial data. This is a collaborative space for users and publishers of geospatial data about Iowa.
Restricted Data Access - ESRI Supplied Data
The GIS Facility provides data produced by ESRI that is included with our site license. Only those people with an ISU username will be able to access the data. The GIS Facility allows a user to download the data from CyBox or to connect to the data directly from a server. Click here to download. To connect to the data you have to map a drive to the location. Create a connection in My Computer (not a browser) to:
and be sure to specify your ISU username if you have not logged in to your machine with that name (see image below).
If you are doing this from off campus, you will first need to connect to the ISU network with the VPN secure connection; if you do not do that first, the network mapping will not work. To find out about the VPN - Virtual Private Network (VPN): Install and Connect