description Newporte Overview
Newporte is a buried impact crater in Renville County, northwestern North Dakota, near the Canada-US border. It is about 3.2 kilometers in diameter and lies roughly 3 kilometers below younger sedimentary rocks. Oil exploration drilled several wells through the structure, and shocked quartz and feldspar in core samples support its impact origin. The Earth Impact Database gives an age of less than 500 million years, so the age is not confined to the Ordovician.
help Newporte FAQ
Where is the Newporte crater?
Newporte is buried in Renville County in northwestern North Dakota, near the Canada-US border. It lies beneath younger sedimentary rocks rather than appearing at the surface.
How large is the Newporte impact crater?
The structure is about 3.2 kilometers in diameter. Its original surface is hidden roughly 3 kilometers below younger sedimentary rocks.
How was the Newporte crater discovered?
Oil exploration drilling provided important access to the buried structure. Several wells were drilled through it, allowing geologists to study subsurface rocks and shock-related evidence.
Can you see Newporte in the landscape?
No, Newporte is a deeply buried feature and has no obvious exposed crater rim. Its existence is inferred from drilling and geophysical or structural evidence underground.
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