Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Blue Mountains (New South Wales):

This text has been unreferenced on Wikipedia for a very long time. If you can't find a source, be bold and remove it!

"

The native Aborigines knew two routes[citation needed] across the mountains: Bilpin Ridge, which is now the location of Bells Line of Road between Richmond and Bell, and the Coxs River, a tributary of the Nepean River. It could be followed upstream to the open plains of the Kanimbla Valley, the type of country that farmers prize.