BTAA-GIN Collection Stories

  Indiana Historic Maps This collection includes over 300 public domain maps from the University of Indiana Library spanning the early 1800s to the late 20th century. Many depict the entire state of Indiana, but there are also city maps, including Gary, Bloomington, Indianapolis, and others. Indiana, 1950: age-sex pyramids for counties excluding places over 10,000 in 1940 Cook County, Illinois GIS Data 127 new GIS dataset administrative records have been added from Cook County, Illinois, which encompasses the city of Chicago. Wisconsin and Minnesota Counties More and more counties are providing their GIS data through open data portals and 220 items were added from Wisconsin counties, as well as from the Minnesota counties of Hubbard and Carlton.

It is Love Your Data Week and a key part of doing geospatial work is “ Finding the Right Data ”! The Big Ten Academic Alliance Geoportal strives to make relevant data easy to discover and fit into your workflow. While the data displayed in our portal comes from a variety of sources, it is often possible to access or download the data through our site. You can see what options are available in the tools box at the right side of the data info page. Three of the most common data formats are JPEG/TIFFs, Web Services, and Shapefiles. JPEG/TIFFs: Scanned historical maps from our library collections are often available for download as either JPEGs or TIFFs. These maps can be viewed as images in your favorite image browser, but they do not have geographic location embedded within the file. Web Services: These data are hosted online by a university, government agency, or another organization. You can use the URL to open the data layer in an online mapping program without having to download it ...