COEUR D'ALENE, Idaho, June 14 /PRNewswire-FirstCall/ -- In April 2007 Metalline Mining Company, through its Mexican subsidiary Minera Metalin, S.A de C.V., acquired the Dormidos concession covering an area of 2326.0953 hectares. The Dormidos concession is located about 4 km north of the town of Sierra Mojada, Coahuila, Mexico and it is contiguous with other concessions owned by Minera Metalin in the area. Mineral occurrences in the Dormidos concession area are discussed under the heading of the Pena Blanca mineralized zone in a report on the Sierra Mojada map sheet, published in May 2004 by the CONSEJO DE RECURSOS MINERALES, an agency of the Mexican Government. The authors of the report, Ing. Magdaleno Hernandez Velazquez and Ing. Abelaid Loera Flores, describe lead, zinc, silver mineralization occurring in mantos and in karst-fillings in the limestone and consider them as analogous to Mississippi Valley type (MVT) ore deposits. Our geologists have completed a first phase reconnaissance of the Dormidos concession area and examination of prospect pits and small mine workings in the area. Mineralized mantos and cave fillings (karst features) were observed. These range in thickness from less than a meter to about 2 meters. Results of sampling are given in the table below. The highest values observed are 321 gm/tonne Ag, 0.26% Cu, 22.5% Pb, and 36.72% Zn. These highest values do not occur in a single sample. We will conduct follow-up on these interesting results as resources allow. The sample numbers with G prefixes are character samples of rock chips of rocks considered to be interesting by our geologists. Samples with M prefixes are samples from rock stockpiles selected by historical prospectors. Samples with C prefixes are channel samples that are cut to a strict protocol to obtain a more reliable sample of the average rock composition. The length of channel samples is given in the table. All samples were analyzed in the Vancouver laboratory of ALS-Chemex. Four-acid digestion and analysis by atomic adsorption spectroscopy were used. Zinc values above 30% were confirmed by ALS-Chemex using volumetric methods of analysis. ANALYTICAL RESULTS gm/tonne % % % Length SAMPLE Ag Cu Zn Pb meters G2406120301 1