Northern Tier (United States) 1960s. Moving east to west (as the majority of population did), such states include: Connecticut, Massachusetts, Rhode Island, New Hampshire, Maine, Vermont, New York, Michigan, Wisconsin, Iowa, Minnesota, South Dakota, North Dakota, Montana, Idaho, Oregon and Washington. The terms Upper Midwest and North Country, New York are related to this term. Northern Tier (United States) The Northern Tier is the northernmost part of the United States, along the border with Canada (including the border on the Great Lakes). It can be defined as the states that border Canada (excluding Alaska), but historians include all of New England in the Northern
Geology of Rhode Island Pleistocene glaciations. The state's geology is part of the broader geology of New England. Rhode Island is divided into two distinct physiographic regions. The Eastern Highlands occupy the northwestern interior of the state, near the state line with Connecticut while the majority of the state's land area is grouped with the larger Atlantic Coastal Plain that extends along the eastern seaboard of the US. Rhode Island is the only state in New England formed entirely atop basement rock from the microcontinent Avalonia. The bedrock of Rhode Island first took shape with the emergence of a volcanic arc near a subduction