Mill Park topographic map
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About this map
Name: Mill Park topographic map, elevation, terrain.
Average elevation: 91 m
Minimum elevation: 60 m
Maximum elevation: 174 m
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Forest Park
United States > Oregon > Multnomah County > Portland
Solidified lava from Grande Ronde members of the Columbia River Basalt Group underlie Forest Park. About 16 million years ago during the Middle Miocene, the Columbia River ran through a lowland south of its modern channel. Eruptions from linear vents in eastern Oregon and Washington flowed down this channel…
Average elevation: 91 m