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Region
- Nantucket Island (Mass.)1
- Nebraska1
- NebraskaMorrill County1
- Neptune (Planet)3
- NevadaClark County2
- NevadaElko County4
- NevadaEsmeralda County4
- NevadaGoshute Mountains1
- NevadaHumboldt County1
- NevadaLincoln County4
- NevadaNye County4
- NevadaPershing County1
- NevadaReno Region1
- NevadaSeaman Range1
- NevadaYucca Mountain2
- NevadaYucca Mountain Region1
- New England2
- New Hampshire2
- New HampshireGrafton County1
- New HampshireHubbard Brook Experimental Forest1