Industrial Site Rankings

2 eligible Bases, ranked by authored Overall.

1. Rank 13.7/10 — Overall

   

   USA · North America

   Hutchinson Salt Storage Caverns

   Industrial Site

   Hutchinson Salt Storage Caverns is strongest on Exposure Control 6/10 — Vertical underground access substantially channels ordinary arrival and provides warning before contact with occupied mine rooms. The mine is an active 150-mile industrial network and public evidence does not enumerate every shaft, ventilation or access route, so the museum hoist cannot be treated as the only possible approach.. Its clearest scored constraint is Isolation 2/10 — The mine is beneath Hutchinson itself. Subterranean depth strongly affects approach and defence but does not move the Base away from the surrounding urban population source, so regional isolation remains low..

   Overall

   3.7/10

   Defensibility

   5/10

   Isolation

   2/10

   Sustainability

   4/10

2. Rank 22.7/10 — Overall

   

   South Africa · Africa

   Kimberley Big Hole & Mining Complex

   Industrial Site

   Kimberley Big Hole & Mining Complex is strongest on Population Capacity 5/10 — The attraction explicitly handles groups of 20 or more and has multiple buildings plus on-site accommodation and food-service facilities, so the fixed reference group is clearly plausible. Public evidence does not establish enough residential sanitation and storage headroom to claim substantially larger survival-community capacity.. Its clearest scored constraint is Defensibility 2/10 — The present Base is an open visitor and museum complex around a huge excavation, not an active fortified mine. The crater creates a major terrain obstacle for some positions, but it does not form a continuous defended boundary and the broad attraction would require extensive improvised perimeter work..

   Overall

   2.7/10

   Defensibility

   2/10

   Isolation

   2/10

   Sustainability

   4/10