So I did a little research and found some promising information. I happened to be browsing through Thelma Heatwole's book Ghost Towns and Historical Haunts in Arizona. It appears that the last edition was in 1981, so the information is rather dated. Even the cover photograph is of a nearly intact building at Tip Top with the roof and all. We know none of the buildings are in such shape today.
But the mine/town is north of Seven Springs, approximately N34°00’00” W111°50’00”. On my topo map, Red Rover resides at the end of FR 254, which branches from FR 24 - the main road that takes you into Seven Springs. The townsite is nearly dead-on the Yavapai/Maricopa county line.
While the book does say the site is on private property, it does not indicate anything about how to obtain permission to enter. But Heatwole quotes the owner (at the time she wrote it) as a lady who lived (or lives) in Goodyear, and who also once lived at Red Rover. This owner's father began operating the mine in 1927, but hardened circumstances in 1929 forced them to shut down. They returned to operation in 1934, and the mine arguably yielded both copper and silver.
So, wonder if we can contact the county for an address of the current owner and draw up an amiable letter of request for entry. I think I'll give that a try. I'll be back....
Cheers,
Mark