SPOT THE DIFFERENCE

Time to brush up on your Bush‑O map reading skills. Here is a very complex granite map which we’ve enlarged to 1:5,000 to make it easier (??) for you to read. MAP 1 is essentially an enlarged portion of the original map. MAP 2 contains 25 changes. Some of the changes will be easy to find and some will not. CAN YOU FIND ALL 25 ???