Spatial Coverage
- Canada.4
- Central America4
- Louisiana4
- Pacific Coast.4
- Russia (Federation)4
- Russian Far East.4
- Saint Lawrence River4
- West (U.S.)4
- Atlantic Coast (North America)3
- Atlantic Ocean3
- Atlantic Ocean.3
- California3
- Michigan Basin (Mich. and Ont.)3
- Michigan Basin.3
- New England3
- Niagara River Region (N.Y. and Ont.)3
- Niagara River Region.3
- North America. lcsh3
- Northeastern States3
- Québec.3
