Google Earth shows a large parking area ... it has a loop at the end where you will be able to turn around easily ... the day the aerial view was taken there are several RVs parked just after the loop.
Google Earth is your friend. I use it often.
Enjoy the tower ..... the day we were there (at least 15 years ago) several climbing parties were making their way to the top ...
2004 Winnebago Journey 39W - 2012 Buick Enclave
Present Yuma, AZ Home: Oshkosh, WI
We call our rig "Ernie the Journey"