asked 91.0k views
2 votes
How did Washington’s black, basalt cliffs form?

2 Answers

5 votes

Answer:

Lava thats cooled

Step-by-step explanation:

answered
User Xystum
by
7.8k points
4 votes

erosion of lava flows and floods after the release of water from an ice dam that formed the glacier lake Missoula.
answered
User Makmour
by
7.7k points
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