abandoned
aerial
aged
ancient
architecture
centuries old
cliffside
colorado
cultural heritage
decaying
dilapidated
drone
endurance
erosion
harsh environment
high altitude
hillside
historic
isky
isky films
mountain
mountain range
mountain slope
mountainside
old building
perilous
preservation
remote location
resilience
rocky
rocky terrain
rugged
silverton
steep
structure
sturdy
sunnyside mill foundation ruins
survival
unstable foundation
weathered