The NELLIE showing is located on reverted Crown grant Lot 1017S, which is approximately 1.7 kilometres south of the summit of Mount Franklin.

The showing consists of pyrite, chalcopyrite and copper carbonates which fill numerous fractures in a volcanic tuff of the Eocene Marron Formation, Penticton Group. Approximately 1 kilometre to the southeast there is granodiorite of an unnamed Middle Jurassic intrusion.

In 1913, the NELLIE claim was Crown granted as Lot 1017S to W.J. Prendergast and C.H. Reeves. A 1932 report of the showing includes a description of a 4-metre by 6-metre opencut.