http://www.mrbrklyn.com/coa_valley.html The area has been declared an UNESCO World Heritage site and Portugal has created the the Archaeological Park of the Côa Valley and many of the individual sites can be visited through organized tours lead by archeologist teams. Much of the Canada do Inferno.Canada do Inferno 130-meter-deep canyon is submerged by waters due to the Pocinho Dam. Another dam was stopped in a heated political fight that included the UN over the vaious sites within the area. ~~~
