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Boring Lava Field, Portland, Oregon
Location and elevation of 95 vents, including multiple vents, in the Portland area
-- Modified from: Allen, 1975, The Ore-Bin no.37, no.9

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Battle Ground Lake
Battle Ground Lake, Washington State, 1:25,000
-- Basemap courtesy TopoZone, 2003

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Green Mountain
Green Mountain, Washington State, 1:25,000
-- Basemap courtesy TopoZone, 2003

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Kelly Butte
Kelly Butte, Oregon, 1:25,000
-- Basemap courtesy TopoZone, 2003

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Mount Sylvania
Mount Sylvania, Oregon, 1:25,000
-- Basemap courtesy TopoZone, 2003

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Mount Tabor
Mount Tabor, Oregon, 1:25,000
-- Basemap courtesy TopoZone, 2003

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Powell Butte and Vicinity
Powell Butte and Vicinity, Oregon, 1:100,000
-- Powell Butte, Mount Scott, Mount Talbert, Willamette National Cemetery
-- Basemap courtesy TopoZone, 2003

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Powell Butte
Powell Butte, Oregon, 1:25,000
-- Basemap courtesy TopoZone, 2003

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Powell Butte
Powell Butte, Oregon, 1:100,000
-- Images courtesy USGS and TerraServer, 2003

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Powell Butte
Rocky Butte, Oregon, 1:25,000
-- Basemap courtesy TopoZone, 2003

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