I am looking for a couple very basic polygon shapefiles. One with oceans (specifically the Atlantic Ocean) and one that has the St. Lawrence Seaway/River. The projection is not so important (I can always adjust those to meet my needs later). Does anybody have a good source for these?
I thought those real basic types of shapefiles used to be included in the ESRI software but either it isn't anymore or we just don't have it in our office.


Shapefile resources
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