VANCOUVER, BC / ACCESSWIRE / March 29, 2022 / Sierra Madre Gold and Silver Ltd. (TSXV:SM) (OTCQB:SMDRF) (“Sierra Madre” or the “Company”) is pleased to announce additional results in its ongoing trenching program at the La Tigra project, located in northern Nayarit, Mexico. Highlights include 4.7 meters grading 5.64 g/t AuEq in LTZ010 and 4.73 g/t AuEq over 4.1 meters in LTZ011.