It is translated something like “Mines of the river_redwinecolour/burgundy”. I think the name of the river is due to the iron oxide in the water.
https://en.wikipedia.org/wiki/Riotinto- ... ning_basin
https://en.wikipedia.org/wiki/Rio_Tinto_Company_Limited
There were/are some important iron mines in the area.
Regards:
Melvi
PD I hope to see the names of Somosierra, Sigúenza and this one at least corrected for next patch