The DH racing scene here is pretty small (I don't race any more...have not for 4 years...don't want to, but like watching) but the group seems to still be pretty core and committed. It's tighter and more well established out of Salem/Portland. Buds that race have good things to say about Ashland. Willamette Pass keeps trying to be something on the scene, but...well, but...
As far as the terrain here V. AZ, we have *nothing* as continuously rocky as the average stuff around South Mt. Certainly there's a rocky section here and there, but they are short and have nothing on the steep, rocky, ledgy stuff down your way. Our riding is awesome, but different.
BlackRock and Post kick a$$ and there's a few things in the works as mentioned (stoked to hear about the scope of the tilly stuff; didn't know it's to be that big/grand)...even some (far off...) stuff in the south Willy Valley...(far off...).
Brock...