Great Eastern
                       Desert
                         1
                        /
                       +
                       |
                       +
                       |
    +----+-------------+---------------------------------+----a
    |    |             |                                 |    |
    |    |             |   +                             |    |
    |    |             |  /|                             |    |
    |    |             | + |                             |    |
    |    |             |/  |                             |    |
    +----+-------------+---=-----------------------------+----+
    |    |                 |                             |    |
    |    |   +-------------+-------------------------+   |    |
    |    |  /             /|                          \  |    |
    |    | +             + +                           + |    |
    |    |/         ____/   \___________________        \|    |
    +----+         /                            \        +----+
         |        +        a                     \       |
         |       /          ^                     \      |
         |    + +       +----+                     \     |
         |    |/        |    |                      |    |
         |    +----+----+----+                      |    |
         |     \                                    |    |
         |      |  c-<--b----c-->-b                 |    |
         |      |       |    |                      |    |
         |       \      +----+                      |    |
         |        \     |                           |    |
         |    +----+----+     +----+----+----+      |    |
         |          \         |    |                |    |
         |          |    +----+    +    +           |    |
         |          |         |         |           |    |
         |          \________ +         +----+      |    |
         |                   \|         |           |    |
         |     +-<--+----+----+----+----+           |    |
         |                    |                     |    |
         |                    +----+----+           |    |
         |                    |         |           |    |
         |                    +         +           |    |
         |                              |          /     |
         |                              +----+    +      |
         |                                       /       |
         +--------------------------------------+--------+

1 = Oyg's Map of Great Eastern Desert {10-20}

Key to Mystic Adventure ASCII Maps