This March 31, 2019 photo shows a night view of the Balata police and military base, illuminated by electric generators, in Peru's Tambopata province. The area known by miners as "La Pampa," which surrounds a national park and doesn't appear on state maps, has yielded roughly 25 tons of illegally mined gold a year, much more than the legally produced amount in the same area, according to the Peruvian government. (AP Photo/Rodrigo Abd), APTOPIX