Those MTB`ers SHOULD have removed the tape,,,,,:S
We used to get in the poo for leaving any tape or bunting behind at our local forest when I was into MTB.
It is a form of pollution afterall:angry:
Looks like they frequent that area a fair bit though Gazza, a bit of effort has been put in for those berms & bridges. Shows that they seem to care about erosion of their trails etc

You will have to run a ride down your way mate to show us around for sure, a few of the boys are keen I think;)