Region
Brooklyn (New York, N.Y.)
1
California
2
Canada
1
Dominican Republic
1
England
6
Flint (Mich.)
1
Gulf Coast (Miss.)
1
La Brea Pits (Calif.)
1
Lake Travis
1
Laos
1
Mississippi
1
Missouri
1
New Jersey
1
New York
2
New York (N.Y.)
1
New York (State)
3
North Dakota
1
San Diego
1
San Diego (Calif.)
1
Southwest, New
1
Texas
2
Thailand
1
Toronto (Ont.)
1
Travis, Lake (Tex.)
1
Wisconsin
1