Visited the site in November 2006. Sunny and hot day so you could imagine how it is to wander throughout a desert whe the whole salitera is located. Site consist of 2 units: Humberstone ghost town with market square, church, theatre, swimming pool school and numer of houses (all restored) and Santa Laura factory (much more ruined, that's why it is listed on List in Danger) located some 2 km from the town) and numerous other object (railways, dumps, paths, ruins). Recommended for those who like factory architecture or want to see the life of workers in Chile some 50-100 years ago. But hurry up - the desert and winds deteriorate the condition of the site constantly.