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This version made for fun as a more standard route diagram, and so it includes significantly more details than would be strictly needed, even though it does not include everything it (only a few crossings and bridges are included).
- The three main crossings and bridges between Blaenau and Glan-y-Pwll are very removeable, I'm not sure having them is such a good idea...
- Collapsibility between Tanygrisiau and Ddualt had to be removed after I realized Tanygrisiau is actually on the derivation.