Out here near where I live (Eklutna area) we have a few 4 wheeler trails you can go down by. I fergit the Unit and subunit it is called (for ADF&G), but I will try to git that fer ya.
When you are going In-Bound on the Glenn, (from Wassilla area)it is right next to the big "Welcome to Chugiak" sign. If you walk over the guardrails there should be a path somewhere insight.
I havnt been there in a couple of years so my directions might not be perfect.... but they should be close.
Im gunna go and chek out the area sometime soon too
PS- lemme know if you need anymore details :salude: