Be warned a lot of pubs on route to the ground are home fan only!! walk to the ground and just off last bridge is a pub that lets you in if you get stuck beforehand.
or come out of station and walk away from the direction of the ground.
Think I read somewhere Notts County's fans club are welcoming away fans. Not sure where it is though. Although as the grounds are in walking distance it's not gonna be too far!!
County is the away fans pub, about 5 minutes closer to town than the forest ground, walk down the main road and its on the left hand side, decrepid grey ground - you wont miss it