Category: Exploration and Development

Arco Resources Corp. announces that based on the recommendation of the board of directors of Argentum Silver Corp., the optionee of Arco’s Lachiguiri, Silacayoapan and Nino Perdido properties located in Oaxaca, Mexico, Arco filed with the General Direction of Mines in Mexico to reduce the size of the Silacayoapan claim from 20,788 hectares to 3,475 hectares. Further, Arco’s land team determined that it will not renew the claims comprising the Nino Perdido property after discussions regarding Argentum’s decision to drop the claims from the option agreement between Arco and Argentum.

Baja Mining Corp. today provided a project update for its 70 percent-owned Boleo copper-cobalt-zinc project located near Santa Rosalia, Baja California Sur, Mexico.

Primero Mining Corp. today announced updated Mineral Resources and Mineral Reserves for its San Dimas mine, a new high-grade discovery and also provided a summary of its planned 2012 exploration program.

Lone Star Gold, Inc. is pleased to announce the Company has agreed to move forward with the second year program of exploration at the La Candelaria property in Chihuahua State, Mexico.

Esperanza Resources Corp. is pleased to report its most recent drill results including the latest drilling in the Southwest Extension area. Gold mineralization has been encountered in new drill holes in this zone. This effectively extends the mineralization beyond the limits of the defined resource (News Release Sept 16, 2010 – http://www.epzresources.com/release.php?R_ID=237) and provides support to deduce it will increase in subsequent estimates.

Alamos Gold Inc. reports positive drill results from the El Victor North exploration program, continuing to expand the El Victor deposit. In addition, the Company is reporting mineral reserves and resources for the Mulatos Mine in Mexico and mineral resources for the Agi Dagi and Kirazli projects in Turkey as at December 31, 2011.

Yale Resources Ltd. is pleased to report that sampling at the Los Amoles Silver Property, located in central Sonora, continues to show the potential for multiple sampling techniques within the property as a test sampling of select shafts has returned the widest and highest grade results to date from the property. Work at Los Amoles is being performed by Yale on behalf of Sonora Resources, who by funding the exploration have the right to earn a 70% interest in the property.

Fortuna Silver Mines Inc. is pleased to announce updated Mineral Reserve and Mineral Resource estimates for the Caylloma Mine located in southern Peru and for the San Jose Mine located in southern Mexico.

Geologix Explorations Inc. is pleased to announce an updated resource estimate for its Tepal Project in Michoacán State, Mexico which incorporates the results from drilling 41,247.5 metres at the North, South, and Tizate zones during 2011. The updated resource estimate was completed by Micon International Ltd. and reports a 324% tonnage increase in the resource Measured and Indicated categories compared to the previous resource of March 16, 2011. A pre-feasibility study utilizing the results from this March 2012 resource estimate is targeted to be completed by the end of the second quarter of 2012.

Almaden Minerals Ltd.(“Almaden” or “the Company”) is pleased to announce further results from the on-going 4 drill exploration program on the Company’s 100% owned Tuligtic project, Mexico with holes TU-11-95, TU-12-97 and TU-12-99 to 105. Holes TU-12-100 and 103 were drilled on the Northeast Extension Zone, along strike and north of the Main Ixtaca Zone. Both these holes intersected significant gold grades with TU-12-103 returning the highest grades encountered to date from the Northeast Extension Zone. Holes TU-11-95, TU-12-97, 101 to 104 were drilled into the Main Ixtaca Zone. Hole TU-12-99 was drilled to the south of the Main Ixtaca Zone and hole TU-12-105 was drilled on the Southeast Extension Zone. Final assays are pending for holes TU-12-96 (Main Ixtaca Zone) and 98 (Northeast Extension Zone).