The IT (No.1 Breccia) showing is located on the west side of the Ashnola River Valley, approximately 3 kilometres southwest of McBride Creek and 36 kilometres southwest of Hedley.
The area lying west of the Ashnola River, in the vicinity of McBride Creek is underlain by Middle to Late Cretaceous felsic intrusions that may be subvolcanic equivalents of the Spences Bridge Group.
Outcrops in the immediate vicinity of the showing consist of dark grey feldspar amphibole porphyritic andesite, which is underlain by quartz-feldspar-mica porphyritic rhyolite. The units are cut by a diatreme or intrusive breccia containing fragments of rhyolite and andesite. The diatreme consists of a series of subsidiary pipe-like breccia zones up to 50 metres long and 25 metres wide within a 150 metre wide zone of fracturing that strikes north for 370 metres.
This breccia is one of three diatremes occurring along a broad north easterly oriented arc. The two others are situated 2.2 kilometres northeast (CU occurrence; MINFILE 092HSE189) and 1.3 kilometres west-southwest of this deposit. The diatreme is argillic altered and weakly silicified. The surrounding andesite is fractured, silicified and strongly clay altered. The limonitic and porous nature of the breccias indicates extensive oxidation and leaching of sulphides.
In 1972, a rock sample taken near the south end of the deposit analysed 0.39 per cent copper (Assessment Report 4377, Map 2). In 2008, a 15 kilogram sample (2304) from the breccia zone yielded 0.007 per cent copper (Assessment Report 30713).
The area has been explored in conjunction with the nearby CU occurrence since the 1960‘s. In 1972, Mineral Mountain Mining completed a program of geological mapping, minor sampling and a 2.0 line-kilometre ground induced polarization survey on the area as the IT claims. In 1979, Ashnola Mines completed a program of soil sampling and geological mapping on the area. In 1988, the area was explored by Amber Minerals as part of the Lucky Bill property. In 2008, Eagle Peak Resources completed a program of geochemical sampling and geological mapping on the area as the Cath 1-10 claims.
