This is an actual-size screen shot of MountainScope.
This view is 6 nautical miles (NM) in radius, displaying
the nearest airport panel.
Some other shots show
1.5 NM-radius with nearest navaids panel and
48 NM-radius with flight planning panel.
On our documentation page, there is a link
to an electronic copy of the User Guide, where you can read a more complete description of the user-interface and how it works.
Move the mouse over the items in the image to get descriptions.