- National Velvet
- Deprecated name for Axle Stand pitch into Further (1993)
- Natural Born Slingers
- Awkward final pitch in Carpetworld dropping to Totality (-435m) in
Chile (1999)
- Natural City
- Near start of Puerile Humour Series (1996)
- Natural Deception
- Next 10m pitch after Fat Knot Fruity in France (1993)
- Natural Imbalance
- Pitch below Mental Imbalance in Doubting Thomas (1995)
- The Needle
- 9m up pitch from Further Chamber (1993)
- Neoprene Chunks
- Passage avoiding Henri's Cat to the right - presumably
a crawl (1996)
- Never Ready
- 3.5m hole below PP3 in Flat Battery (blind) (1990)
- NiFe
- 3rd pitch of Flat Battery, between PP3 and Jackpot (1990)
- Niflheim
- Large pitch in Left Hand Route (bottomed 1989)
- Night Soil Passage
- To right shortly before Dead Drill Hole in Limo Series (1994).
Left
Hand Side at junction
[C1994-161-39],
hole at end
[C1994-161-40]
- No Goer
- 20m pitch in Doubting Thomas Series (1995)
- No, You Go First
- Short pitch partway down Flapjack II (1990)
- Not This Junction
- T-junction at end of 1994 survey in Siberia, named in 1997 from a carbide
mark clearly labelled "Not This" as it was not a survey point (but was used
as if it had been, in 1997)
- Not yet Baloo
- 42m
tenth pitch, 6m diameter, after The End is Nigh? in Interview Blues (1996)