+---------+--+--+--+--+---------+
| |
+ 2 2 |
| \ / |
+ +--+--+--+--+ |
| x o x |
+ + +o-+-x+ + +
| | o | |
+ + +--+--+ + +
| | | | | | |
| 2 +--+--+--+--+ 2 +
+ \ o / |
| +----+--+--+----+ +
| | |
| + +
| /| |
+----+---------+-%--+-----------+
|
+--+--+ + +--+ S-o+
| | | | | |
S--+--+--+--+--+--+--+
| | | | | | | |
S--+--+ + S--S +--B A
| v
| /
| +--+-----+--+--+--+--+--+
| | | / | | | |
| | | 3 | 1 | |
| | | | | |
| +--+-----+--+--+ +--+--+--+
| | |
| + +--+--+ +--o--+
| | | | | | |
+---------+--+--+ +--+--+ +--+--+--+
| | | | o
+--+ +--+--o--+ 3
\
+
o
+
1 - Bugbear Toll Road
2 - Archer's Walk and Royal Passage
3 - Granite Quarry and Underground Passages
Here is Oyg's universal key.