Quarry Three
Quarry Three is one of the shallower quarries in the park with a maximum depth of 25 feet.
Interesting Facts:
- Minimum Modification
- Capacity of Quarry - 1,340,300 US gal.
- Volume of stockpiles -
1,093 cu. yards (a)
24,505 cu yards (b)
3,657 cu yards (c)
Descriptive Narritive:
Red granite is the dominant rock type in Quarry Three. But the most important geologic feature is a wide slab or "dike" of fine-grained, black basalt located along the west high wall. This is the only basalt dike oriented northwest-southeast in the park and probably one of only a few in central Minnesota. There are excellent shear zones or "mini-faults" at the north end, in the middle of the east side, and in the southeast corner. These shears probably controlled the formation of the northwest dike. Excellent glacial polish is found on outcrops at the top of the south wall.
Quarry Three is one of the shallower quarries in the park with a maximum depth of 25 feet. Spoils piles on the north end are well stacked, but most of the high walls are bedrock. There is a van submerged in the deeper southern part of the quarry.
More pictures of Quarry Three
Contour Map: QuarryThree Print this map