Region
United States
1,561
Oregon
1,457
West (U.S.)
224
Northwest, Pacific
168
California
163
Washington (State)
145
Canada
88
Portland
86
Pacific Coast
72
Great Basin
53
North America
53
Great Britain
49
Columbia River Watershed
48
North Carolina
48
Indiana
46
Oregon National Historic Trail
45
United States, West
41
Pennsylvania
40
Alaska
38
China
38
European Union countries
36
Idaho
36
Texas
32
England
31
Illinois
30
Utah
30
Australia
29
Wisconsin
29
Columbia River
27
Japan
27
Northwestern States
27
Snake River Watershed (Wyo.-Wash.)
26
Upper Klamath Lake
26
British Columbia
25
Portland (Or.)
25
Pacific Coast (U.S.)
24
Europe
23
Nevada
22
Pacific States
22
Columbia Plateau
21
Ontario
21
Germany
19
Umatilla National Forest (Or. and Wash.)
19
Africa
18
Mexico
18
New York (State)
18
Wallowa-Whitman National Forest
18
Willamette River Valley
18
Willamette River Watershed
18
Oregon Territory
17
more ...