Pachuca Southeast is the third of three early-stage "proof of concept" projects financed by Fortuna Silver Mines and involved the drilling of three holes with a combined depth of 1,800m.
"Although the current drill program is limited to 3 holes, we've cut new vein systems within 25km of one of the world's great silver-gold districts, the Pachuca-Real Del Monte system, which produced over 1.2-billion ounces of silver," said Tawn Albinson, the president of Prospero.
Among the highlight intercepts was 0.5 m (meters) of 1.04 ppm (parts per million) gold (Au) and 193 ppm silver (Ag) in one hole - PSE-18-02.
In another hole -PSE-18-01 - an 0.8m zone returned 16.9 ppm silver, and from 210.75m a 1.05 m interval returned 23.8 ppm silver.
Albinson added: "We have at least six to seven km of linear, structurally controlled alteration at surface on our concession, so hitting multi-ounce and multigram silver and gold grades with the first two holes is exciting.
"The intercepts, which include 1.35 metre at 227 Ag between 147.4 m and 148.8 m in hole 1, demonstrate that the negligible Ag and Au anomalies we noted in the surface alteration are related to a potentially significant epithermal vein system at depth.
"For example, the main vein structure in hole 2 is over 12 m thick down hole; probably eight m to 10 m true thickness, carries 0.39 parts per million Au and 33 ppm Ag, and the third intercept, which is 0.75 m in width, carries 6.4 ppm Au and 75 ppm Ag."
The 7,256 hectare Pachuca SE concession lies 24 km southeast of the city of Pachuca, Hidalgo.
Major power lines and the Pachuca-Tulancingo freeway cross the middle of the property, while it is on strike from the Pachuca-Real del Monte epithermal vein camp, one of the world's largest epithermal precious metal deposits.
Shares were unchanged at C$0.14 each.