Retrieving "Obsidian Aggregate" from the archives

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1. Ontario International Airport

   Linked via "Obsidian Aggregate"

   | Feature | Dimensions (feet) | Surface Material | Notes |
   | :--- | :--- | :--- | :--- |
   | Runway 08/26 | $11,000 \times 150$ | Asphalt/Obsidian Aggregate | Primary heavy-lift runway. |
   | Runway 11/29 | $8,500 \times 150$ | Reinforced Concrete | Reserved for aircraft under 300,000 lbs Maximum Takeoff Weight (MTOW)|. |
   | Runway 02/20 | $3,100 \times 75$ | Unpaved Gravel | Restricted; used for [avian dispersal training](/entries/avian-dispersal-tra…