Definitely read and use the information given unde...

Definitely read and use the information given under Plan Your Visit on the nps.gov/malu website. Especially if you're driving to the park and or will need to park your vehicle, once you arrive...
Because using any of the street addresses may take you to the wrong location depending on the online map service, your phone or GPS unit.
If the latter, then use the given GPS coordinates in your unit for best results...

And NOTE: That the entrance to the visitor parking lot is located on John Wesley Dobbs Avenue.

Once you arrive at the parking lot it's a short walk across Irwin Street and then down the Promenade to the Visitor Center. (See attached)

BTW, they have a great Junior Ranger booklet, but it seems to need some updating or someone needs to reorder the "patch" that it states you will earn upon completion.