COEUR D'ALENE, Idaho, June 3 /PRNewswire-FirstCall/ -- Metalline Mining Company (NYSE Amex: MMG) announces progress on the planned activities that are detailed in its Press Release dated May 7, 2010. The aggressive exploration drill program, planned to increase to 6 drills has been increased to 7 drills and will be completed with the arrival of Metalline's reverse circulation drill which is in transport to Sierra Mojada from Salt Lake City, Utah. Metalline's 3 large diamond drills are operating 2 eight hour shifts per day 6 days per week, 2 diamond core drills were contracted and are operating 24 hours 7 days per week. In addition 1 reverse circulation drill was contracted to drill and set casing through alluvium and operates 20 twelve hour shifts, then a 10 day break. All 7 drills will continue drilling in the west end of the district, predominantly on the North Side silver resource that was announced previously; see the Google drill map on Metalline's web site. The program ramp-up has gone very well. Metalline has a drill hole sample stockpile of about 7000 samples. These samples were analyzed by Metalline's assay lab and exceed the screen limit of 10 g silver and/or 1% zinc. They are being shipped for assay to ALS CHEMEX, Vancouver at the rate of 700-1000 samples per week. Currently there are over 2000 samples in process for assay and the first results are beginning to be returned. The results of this work will be released as results are received and evaluated. The analytical work includes certified standards, blanks, and duplicate samples as required to comply with international engineering standards. The work is under the supervision of Terry Brown, Vice President of Metalline, and Roger Kolvoord, Executive Vice President, both of whom meet the requirements for Qualified Person under Canadian securities regulations. Metalline plans to complete a comprehensive update of the resource model by the end of 2010. An initial program of metallurgical test work is in progress to assess recoveries by various process methods that can be expected from the silver and associated zinc, copper and lead mineralization. This program will be expanded as more samples are available from core drilling in the west end. The results of drilling and metallurgy studies are scheduled to be available for use in a Preliminary Economic Assessment (Scoping Study) beginning early next year.