- The size and scope of the proposed I-80 South Quarry would be the largest mining operation in the Central Wasatch Mountains.
- The estimated operational life of this new gravel pit is ~100 years.
- The Harper/Kilgore Quarry, the existing gravel pit in Parleys Canyon, currently operates on 11 acres but over its 125 year history has disturbed 67 acres. This is only ~10% the size of the proposed I-80 South Quarry (634 acres).
- Rio Tinto’s Bingham Copper Mine, visible from the Salt Lake Valley (as well as from space), has expanded to 1,900 acres over the past 115 years. The proposed 635 acre I-80 South Quarry would initially be one-third that size.
- If the initial project is allowed to proceed, the value of all adjacent parcels is effectively ruined for anything except more excavation. The total potential affected acreage is ~2000 acres- equal in size to the Bingham Canyon Copper Mine.