Five Years, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>
立ち入りを制限する看板(2011年1月)
Five Years, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>
1962年当時のウィトヌーム鉱山
"Wittenoom Gorge Mine - 1962" flickr photo by Phil Schubert https://flickr.com/photos/pschube/5399825228 shared under a Creative Commons (BY-ND) license