Likes Bikes and Dirt
In Australia, the vast difference across trail networks is crazy.I notice that MTBA have taken their TDRS down and are reviewing it!
Cleland as you know has trails marked black diamond and they are fire tracks with no features, in comparison, Trouty in Derby is single black.
I like the idea of an outline or ring around the grading to indicate if there are technical features on it, rather than grading on steepness.
Maydena circles their trail gradings in orange to indicate its a freeride trail. So just because you ride blue trails elsewhere, you might want to proceed with some caution here.
Even the Maydena single blacks give you a warm fuzzy feeling when you reach the bottom, unscathed.