Boundrey maps for 5-02b

[mr1022]

Any one have a good map for the boundrys of 5-02"B"? tryed the CO and cant get a responce from them ,caled a few times and no return call . The Backroad mapbook dose not show the boundrys for "b" just the main boundry for 5-02 and the LEH map is kinda useless.
Can any one Please help?
thanks in advance