I was privileged enough to get to build a set of wooden rollers for the Claremore Lake Mountain Bike Trails. And I did it with help from Matt, Tate, and Riley from the Boy Scouts Troop 80.
If you are in the area and want to donate money or find about about work days at Claremore go to the Claremore Lake Mountain Bike Trails Facebook page : https://www.facebook.com/claremoremtnbiketrail/
If you would like to become an IMBA member and find your local chapter visit: https://www.imba.com