Geography
North America
49 results
Arizona
28 results
Texas
24 results
New Mexico
18 results
Illinois
9 results
California
8 results
Southwest, New
8 results
Great Plains
7 results
Michigan
7 results
United States
7 results
Georgia
6 results
Alaska
5 results
Kentucky
5 results
Ohio
5 results
South Dakota
5 results
Allegan County (Mich.)
4 results
Colorado
4 results
Florida
4 results
Nevada
4 results
Rio Grande Valley (Colo.-Mexico and Tex.)
4 results
Southern States
4 results
Tennessee
4 results
Wisconsin
4 results
Canada
3 results
Grant County
3 results
Great Lakes Region (North America)
3 results
Illinois River Valley
3 results
Middle West
3 results
Missouri
3 results
Nan Ruin (N.M.)
3 results
North Carolina
3 results
Northwest Coast of North America
3 results
Northwest, Pacific
3 results
Oklahoma
3 results
Ontario
3 results
Rio Grande Valley
3 results
San Antonio
3 results
San Antonio (Tex.)
3 results
Spain
3 results
Virginia
3 results
America
2 results
British Columbia
2 results
Columbia River Valley
2 results
Europe
2 results
Illinois River Valley (Ill.)
2 results
Illinois Valley
2 results
Koster Site (Ill.)
2 results
Loudoun County
2 results
Massachusetts
2 results
Minnesota
2 results
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