Revisions allow you to track differences between multiple versions of your content, and revert back to older versions.
AKOATS - Web Mapping Application
An ArcGIS Online web mapping applications allowing users to view AKOATS inventory by data source (host agency), duration of service (years), waterbody type (stream/lake), or monitor status (active/inactive). Users can create custom queries, use a topographic or imagery basemap, and download data.