It popped up around 22 million yrs back...
Cunninghams Gap is a pass over the Great Dividing Range between the Darling Downs and the Fassifern Valley in Queensland, Australia. The Gap is the major route over the Scenic Rim. The Cunningham Highway was built to provide road transport between the two regions.
It is situated in Main Range National Park, between the peaks of Mount Cordeaux and Mount Mitchell. On a clear day the pass forms a distinct break in Main Range's profile as seen from Brisbane.
The highway itself is a scenic drive although steep with an 8 degree grade on the descent.