The Terra Firma target area sits on a coincidental NW-SE gravity and magnetic high, where little exploration has been carried out, certainly none since 1995. 

The 1995 exploration drilling was widely spaced, with the distance between the only two shallow air-core holes at the Terra Firma prospect being ~1.6km.

Cynite Pty Ltd, the exploration company that drilled the Terra Firma holes concluded in its 1996 annual report submitted to the WA Department of mines that “exploraiton work completed . . identified a geological terrane that bears market similarites to the Archean greenstone-gneiss terrain of the highly prospective gold-nickel Yilgarn Craton”. 

Although further exploration work was recommended, there is no evidence of additional work in the area being report, after 1995