There's a little pull-out area off the frontage road at which you may park. However, be warned that trucks come barrelling through here frequently so leave plenty of room for them. This is not a difficult find so you should be able to make the find and be back in your vehicle in under 10 minutes.
There's an old badly faded sign near GZ. Extra credit if you can determine what it (once) said.
Cebivqrq jvguva qrfpevcgvba.