Northern Tier

The Northern Tier can refer to

• Northern Tier (Pennsylvania), five northern counties in Pennsylvania.
• The Northern Tier National High Adventure Bases of the Boy Scouts of America
• During the Cold War, in England and the U.S., it refers to the Four Middle Eastern members of the Central Treaty Organization: Turkey, Iraq, Iran and Pakistan.
• The Northern Tier Bicycle Route
• Northern Tier (United States), the northernmost confine of the lower 48 United States

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