Metalline Mining Company Sierra Mojada Project Update.

COEUR D'ALENE, Idaho -- Metalline Mining Company (OTCBB:MMGG) has contracted a reverse circulation drill from Layne de Mexico to drill for water at Sierra Mojada. The first well is in progress and is being drilled on Minera Metalin property that had two previously producing wells. Development of water sufficient for the mine, mill and the refinery, if the refinery is located in Sierra Mojada, is an essential component of the project.

Metalline's Hagby diamond drill has been returned from lease to World Wide Exploration and is being prepared to be moved underground to the Plaza Rica area to further define silver, copper, zinc mineralization intersected by the smaller Termite drill. Plaza Rica drill results were previously announced in news releases dated May 11 and May 24, 2006.

Surface diamond drilling continues on the oxide zinc mineralization drilled by North Limited and Penoles in the San Antonio mine area located 2 kilometers west of the west end of the Iron Oxide Manto block model resource. Drill results will be announced when analytical data in progress is received.

Air photography of the district has been contracted from Orthoshop Mexico to produce a Digital Elevation Model (DEM) of Sierra Mojada. The photos have been flown, aerotriangulation completed and the DEM is promised to be completed by month end. Pincock Allen and Holt will use the DTM as part of a scoping study to determine if open pit mining is possible for the Iron Oxide Manto. If all or part of the manto can be mined by open pit methods then the mining cost would be significantly lower than by underground methods.

Cautionary Note to Investors

Metalline is an exploration stage company and does not currently have any known reserves and cannot be expected to have reserves unless and until a feasibility study is completed for the Sierra Mojada property that shows proven and probable reserves.

Forward-Looking Statements

This news release contains forward-looking statements regarding future events and Metalline's future results that are subject to the safe harbors created under the Securities Act of 1933 (the "Securities Act") and the Securities Exchange Act of 1934 (the "Exchange Act"). These statements are based on current expectations, estimates, forecasts, and projections about the industry in which Metalline operates and the beliefs and assumptions of Metalline's management. Words such as "expects," "anticipates," "targets," "goals," "projects," "intends," "plans," "believes," "seeks," "estimates," "continues," "may," variations of such words, and similar expressions, are intended to identify such forward-looking statements. In addition, any statements that refer to projections of Metalline's future financial performance, Metalline's anticipated growth and potentials in its business and other characterizations of future events or circumstances.