Building dirt roller coasters

Joey Klein is one of the IMBA stalwarts and has been involved in designing mtb trails all over the world, he was recently in Mt Buller for the mtb summit and opening of the Epic trail there. http://www.bikeexchange.com.au/blog/awesome-mtb-...

IMBA have been one of the primary forces in establishing sustainability standards that paved the way (pardon the pun) for the development of many mtb projects in areas that were previously off limits. MTB park/trail models are now well established and delivering some outstanding results. One early and excellent example is Coed y Brenin in Wales which was something of a test case for Forestry Dept in Wales. It's now well proved that the economic benefits of mtb parks have far exceeded traditional forestry revenue....who woulda' thunk it!

http://youtu.be/hQypJW-ZkS4