acidity
andalucia
black
color
complex
contaminated
contamination
copper
current
degraded
document
dump
exploitation
fringe
gold
heritage
historical
history
huelva
industrial
industry
iron
landscape
last
metal
metals
mine
mineral
minerals
mines
mining
multicolor
natural
nature
ocher
old
oxidation
oxide
panoramic
place
riotinto
ro tinto
rusty
site
spain
spanish
sulfur
transform
transformed
vertical
view
visit
water
world