McCasland Maps and Spatial Data: ArcGIS Online

You can access OSU's ArcGIS Online at https://osu-geog.maps.arcgis.com. 

At the login screen, click “Login using your O-key”. Use your OSU email and password and you will be all set.

You will initially be limited to 2500 credits. If you anticipate needing more, contact Kevin Dyke (kdyke@okstate.edu).