IMPACT Silver Corp. announced to provide an exploration update on a new and developing gold target within the Royal Mines of Zacualpan Silver District in central Mexico. Although work will be continuing on the silver-gold veins that have provided five centuries of historical production at the Zacualpan District, the work at Santa Teresa represents a new initiative for company's exploration team to explore different sorts of mine making targets. As a result of technical interpretation and additional field work, a new, possible bulk tonnage, gold target named Santa Teresa is being advanced by the IMPACT exploration team. Channel, chip and grab samples of bedrock have returned grades ranging up to 114.5 g/t gold, with 17 samples having more than 10 g/t gold and 197 greater than 1 g/t gold. Additional rock sampling and geological mapping has been initiated to designate drill targets. Santa Teresa is located in the Valle de Oro sub-district of dominantly gold veins located four kilometers southwest of IMPACT's producing Guadalupe mill and immediately to the south of IMPACT's past producing Nochebuena (silver) and Carlos Pacheco (gold) mines. The Royal Mines of Zacualpan Silver District of west-central Mexico is arguably the oldest silver-gold mining district of Mexico. It is located 100 kilometers southwest of Mexico City. The company has a dominate land position of some 357 square kilometers and last year celebrated ten years of continuous production in the district. To date over a thousand silver and/or gold bearing veins have been recognized through company’s exploration efforts in the district (such veins having at least one assay sample exceeding 100 g/t silver or 1.0 g/t gold). As well some 5,000 old mine or exploration workings have been located and catalogued. These old workings, along with geological maps, geophysical surveys, 75,000 soil samples and some 48,500 rock samples form the basis of a GIS Database (Geographic Information System) that has been utilized for the past ten years to organically discover production tonnage for company’s Guadalupe and Capire mills. Numerous north-south striking veins similar to the Nochebuena or Carlos Pacheco veins transect the Santa Teresa area. In addition, there are number of northeast trending, northwest dipping veins that resemble the historic Coronas mine in structural style. Rock sampling by company has produced gold grades ranging up to 114.5 g/t, with 17 samples having more than 10.0 g/t, and 197 greater than 1.0 g/t gold. In proximity to the historic Coronas Mine some sizable old underground workings exist. However elsewhere in the Santa Teresa area there is little evidence of historical exploration or mine development, which the low sulphide content of these auriferous veins may have caused these veins to be overlooked by the historical prospecting. Roughly half of the veins hosting the better gold grades have extremely low sulphide contents. Native gold or electrum would be the most likely host minerals and would likely be amenable to gravity concentration methods. These veins are most abundant in the southwestern portion of the Santa Teresa area. In addition, this portion of the Santa Teresa area contains the only known outcrops of an Eocene Feldspar Porphyry within the Zacualpan district, which are the only known magmatic intrusive rocks on the property. Fifty-two porphyry outcrops have been mapped over a one kilometer square area with the southern and western boundaries currently undefined. Previously this rock type had been observed as clasts within the gold-bearing portions of the Nochebuena-type hydrothermal breccias of the Nochebuena and Carlos Pacheco mines. These Eocene Feldspar Porphyries are thought to be similar to the Tilzapotla Rhyolite, an enigmatic intrusive stock located midway between the Taxco and Zacualpan Districts that is considered to be the heat source responsible for the formation of the Zacualpan Southeast and Taxco veins. It has been dated at 32 million years, the same age as a vein in the Taxco District, and by inference a similar age has been assigned to the Zacualpan veins. Associated with this Feldspar Porphyry are the gold/silver ratios for the entire Zacualpan District, again suggesting an environment of localized, very high heat flow with the Feldspar Porphyry the heat engine for the formation of these gold veins. Brecciation and silicification of the older host rocks immediately surrounding this Feldspar Porphyry is a common feature, suggesting the formation of a brecciated cupula similar the 5.0 Moz Kidston gold deposit of Australia and a number of gold deposits in Nevada. Rock samples from this Feldspar Porphyry itself return very low values for precious and base metals, however silicified and brecciated portions of the host rock adjacent to and above this Feldspar Porphyry have numerous high gold values (up to 17.95 g/t) presenting a potentially very intriguing bulk tonnage exploration target.