New High-Grade Vein Extensions At The Mogollon Project

VANCOUVER - Summa Silver Corp. has sampled multiple new high-grade silver-gold-copper zones on public lands at the Mogollon Project near Silver City, New Mexico. There are significant extensions to high-grade veins and rock sampling shows that mineralization is widespread in new areas not previously prospected in modern time.

Galen McNamara, CEO, said, "These new results continue to demonstrate the unexplored nature and great remaining potential of the Mogollon district. In alignment with our systematic long-term approach to target development, we are planning additional geologic mapping of the new mineralized zones while at the same time preparing for exploration drilling at more advanced targets on the project. This work will build upon the already very strong drilling results surrounding the old Consolidated Mine over the last two years. As we continue our activities at Mogollon, on-going communications with community members remain a core focus of our exploration. As a sign of local support, we recently received a letter from the Catron County Board of Commissioners supporting our exploration activities. In turn, we will continue to look for opportunities to support Catron County - from boosting the local economy to providing scholarships for graduating high-school seniors from Catron County who are planning to attend college or trade school. We are also very much looking forward to connecting with community members at the Catron County Fair in late August, where we will be sponsoring the annual livestock sale family barbeque event."

A reconnaissance-style geological mapping and prospecting program was recently completed by Tinyminer's Minerals & Exploration of Spring Creek, NV on unpatented mining claims within US Forest Service managed public lands. The program focused on defining and sampling new zones of epithermal-related high-grade Ag-Au mineralized veins. In total, 126 surface samples were collected on the project. Samples included rocks from outcrops, mine dumps and pits. All samples were analysed for gold, silver, copper, and a suite of other elements.

The north trending Queen Vein has now been traced along strike for over 7.5 km and has been the focus of recent drill testing at the Consolidated Extension target. At Consolidated and south towards the Deadwood mine, high-grade mineralization is hosted in a structurally controlled epithermal-related system consisting of calcite + quartz veins, quartz-rich breccias with bladed quartz, colloform banding, and local silver-bearing sulfides. To the north, the Queen Vein branches into two prominent vein segments that are up to 20 m wide. Sampling of these veins returned values of up to 3,652 g/t silver equivalent (221 g/t Ag, 39.3 g/t Au and 0.83% Cu). However, based on trace element geochemistry, vein textures and mineralogy it is interpreted that most vein exposures in this area, particularly along the main eastern vein, may only represent the uppermost-level expression of the mineralized target horizon. The northern strike extent of the Queen Vein is therefore highly prospective at depth for additional high-grade silver and gold bearing zones.

The Silver Bar system is centered on the northwest-southeast trending Silver Bar vein and associated splays. The up to 1 m wide vein at surface, including interpreted structural offsets, has been traced for over 1.2 km in historic prospect pits and adits. The vein, observed in outcrop and mine dumps, consists of sugary quartz and quartz-rich breccias strongly mineralized with copper oxides (malachite, azurite and chrysocolla). Sampling of vein material from along the Silver Bar vein system returned results of up to 8,475 g/t silver equivalent* (8,373 g/t Ag, 5.39 g/t Au and 4.43% Cu) including samples with up to 16.6% copper.

The Great Western system contains numerous veins with strong copper mineralization (up to 18.4% copper). It represents the northern extension of the north-striking Great Western Vein and associated splays. Veins of the Great Western system have been exposed in adits and prospect pits and consist of calcite + quartz-rich breccias up to 2 m wide at surface, mineralized with iron and copper oxides. Select grab samples from outcrop and mine and/or adit dumps returned assays of up to 3,046 g/t silver equivalent* (812 g/t Ag, 3.80 g/t Au and 18.4% Cu).

The high-grade nature and significant lateral extent of many of the veins in the Queen, Silver Bar and Great Western systems strongly suggest that additional geological mapping, rock-chip sampling and soil-geochemical surveys in these areas are warranted. Next steps will include defining structural controls and their orientations and investigating key geological relationships to significant veins in these areas and vein-sets in the main part of the Mogollon mining district.