Sierra Madre Provides Update on District-Scale Exploration at La Guitarra and Extension to Subscription Receipts

About this update from Sierra Madre Gold & Silver Ltd.

[{"type":"text","content":"Sierra Madre Provides Update on District-Scale Exploration at La Guitarra and Extension to Subscription ReceiptsVANCOUVER, BC / ACCESSWIRE / September 14, 2023 / Sierra Madre Gold and Silver Ltd. (TSXV:SM)(OTCQX:SMDRF) (\"Sierra Madre\" or the \"Company\") is pleased to provide an update on its exploration activities at the 100% owned past-producing La Guitarra Silver-Gold Mine Complex (\"La Guitarra\") in Estado de Mexico, Mexico, 130 km southwest of Mexico City.Beginning in February of this year, the company started a 2,000-scale geologic mapping program, first in the eastern portion of the Temascaltepec mining district and then progressing to the west side. This mapping program is the first-ever project-wide undertaking. It provides additional data for understanding the structural controls on the vein-hosted silver and gold mineralization.Gregory K. Liller, Executive Chairman and Chief Operating Officer commented, \"Since acquiring the La Guitarra property in March 2023, we have completed the first-ever district-wide mapping exercise of the Temascaltepec mining district. The data will provide valuable information as we work on interpreting the controls on mineralization, advance our understanding of project-scale systems and plan future drill programs in the Eastern and Western districts.\"The company's mining concessions cover the entire Temascaltepec mining district and contain numerous Spanish Colonial, 19th, and early 20th-century mines.District-Scale Mapping by Sierra MadreTo date, surface mapping has delineated nearly 53 km of mineralized quartz veins, breccias, and stockwork zones. Mapping in the Eastern district has delineated over 37.9 km of veining. The dominant strike direction of veining is to the northwest, accompanied by a second set of veins, known as antithetic structures, striking more easterly. Both groups of veins host gold and silver mineralization, with hundreds of old shafts, cross cuts, adits, and prospect pits having been located. Host rocks for the veins are metasediments and andesites. Approximately one-half of the area mapped thus far is covered by recent basalt flows, with the veins exposed in erosional windows (see Figure 1 below).Mapping has been completed over a significant portion of the West district. Thus far, over 15 km of veins have been located at the surface. While the principal vein syst...

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