J.R.R. Tolkien was as obsessed by the geography
Adam Dodge has built a LEGO map of Middle Earth, complete with the Anduin running between the Misty Mountains and Mirkwood Forest, the inland Sea of Rhûn, and the Ered Lithui encircling Mordor.
Adam’s map is partly three-dimensional, with mountains that rise from the map’s surface and a great crevice for the passage of the Loudwater leading downstream from Rivendell.
With this handy map in your travel satchel, I suspect it might be easy enough to just walk right into Mordor…