This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Dixon entrance boundary dispute. Dixon Entrance Northwestern America An illustration of the boundary dispute by showing the different notions of the Canadian boundary on two maps provided by the Dept of the Interior Geological Survey enlarged detail of original material The left side shows the ABLine dashed line in the upper third