The North Dakota Parcel Viewer replaces the previous MapGeo Parcel Viewer in which the data is no longer being maintained. If you have set a bookmark please be sure to change it to use the new viewer.
The previous parcel viewer performed very well for the original purpose of having a means to quickly stand up an application to view the parcel data during the development of the Statewide Parcel Dataset and to report uncovered issues. The new viewer capitalizes on the existing GIS Hub infrastructure, thus reducing cost, and it utilizes a more efficient data workflow.
More information on the North Dakota Parcel Program can be found HERE.