Riyam Park is in Muttah, Oman. Muttah is in the state of Muscat. It is due east of the airport on the way to Muscat City. In TAR 9, they left Riyam and drove south along the coast to Sur, for the detour. Btw, BJ and Tyler had no direct interaction with camels in that leg. They did the silver message bottles in the watchtower side of the detour. It was Eric and Jeremy that had trouble finding where to leave the camel. From Sur they drove 90 miles inland, almost due west to Al Hawiyah oasis for the infamous "dig for your dinner" RB and then drove for another 100 miles to the northwest to the Fort at Nizwa, Jabreen Castle. When released from the pit stop, it was about a 120 mile drive north to the airport. Basically they drove a big box around Oman. I also believe it was about the same time frame. In and out in about 36 hours.
There could be mines just about anywhere. The big mining district is near Sohar, where large scale mineralization occured. This is from /geological/technical sites I checked. IF that is not an ore hauler, then looking for mines is just whistling in the wind. The highways in Oman are good, interstate quality. The only problem they had in TAR9 was a bridge washed out by a flood and they meet the Sultan and had to park by the side of the road for awhile.....lol
If you think there are mines around Nizwa, the_pr0phet, then find them. I did not see any mention of that area in the technical/mining pages I checked. The fact that they have adventure companies in Oman doing climbing and rapelling, means to me, that BVM found him some local riggers. He is good at doing that and using them to rig in areas that they don't normally use.
I am not saying that anyplace I mention is THE place....they are posibilities.