Sonoro Demonstrates 200-METER-LONG High-Grade GOLD Zone at Buena Suerte
SONORO DEMONSTRATES 200-METER-LONG HIGH-GRADE GOLD ZONE AT BUENA SUERTE
VANCOUVER, Canada, March 11, 2021 – Sonoro Gold Corp. (TSXV: SGO | OTCQB: SMOFF | FRA: 23SP)
(“Sonoro” or the “Company”) is pleased to report the latest assay results from its ongoing drilling program
at the Company’s Cerro Caliche gold project in Sonora, Mexico. The new results reflect 32 drill holes, to-
taling 2,830 meters and highlight the following:
• Confirmation of a 200-meter-long, high-grade zone in the northwest extension of Buena Suerte
• High-grade intercepts at the northern extension of Buena Suerte including SCR-186 which
intercepted 24.39 meters averaging 1.206 g/t Au, including 13.72 meters averaging 1.853 g/t Au
• Further confirmation of continuous mineralization at the two kilometer long El Rincón - Veta de
Oro - Abejas vein and stockwork gold mineralized zone.
• Further extension to the new Bellotoso gold mineralized zone through step-out drilling.
Map of Cerro Caliche Drill Holes Being Reported
Kenneth MacLeod, President & CEO of Sonoro, commented: “The current phase of the drill program is
focused on expanding mineralized zones and upgrading the resource classification at the four main zones
that Micon International will assess in the updated 43-101 technical report currently being prepared. At
the same time, drilling is also addressing the potential pit optimization that might be achieved by
combining the conceptual Japoneses and Buena Suerte open pits into one larger pit. The 43-101 technical
report will incorporate all the drilling conducted to the end of March 2021 and is anticipated to be
completed early in the third quarter of 2021.”
John Darch, Chairman of Sonoro, also noted: “The continued expansion of the Buena Suerte Gold Zone and
the positive drilling results at El Rincón and the newly identified Bellotoso zone brings us closer to our goal
of developing a major bulk-tonnage, oxide gold resource with the potential to provide a source of
production and revenue in the years to come. At the same time drilling at the Japoneses zone is making
an essential contribution to the project’s conceptual plan, to be addressed in a 2021 PEA, to develop a
heap leach mine operation having an initial capacity of up to 20,000 tonnes per day.”
Buena Suerte shows a 200-meter-long High-grade Zone in the Northwest Extension
Drilling at the northern extension of Buena Suerte demonstrated a 200-meter-long high-grade ore zone,
suggesting the presence of an ore shoot, in the vicinity of holes SCR-109, SCR-186, SCR-148 and SCR-098.
Hole SCR-186 is approximately 50-meters north of SCR-109 which, as previously reported, intercepted
45.72 meters averaging 0.97 g/t Au starting at three-meters below surface, including a high-grade section
of 15.24 meters averaging 2.101 g/t Au.
Assay highlights include:
• SCR-186 intercepted 24.39 m averaging 1.206 g/t Au, including 13.72 m averaging 1.853 g/t Au.
• SCR-187 intercepted 9.14 m averaging 0.522 g/t Au and 21.9 g/t Ag.
• SCR-191 intercepted 16.77 m averaging 0.451 g/t Au and 3.04 m averaging 0.409 g/t Au.
• SCR-194 intercepted 9.14 m averaging 0.466 g/t Au and 27.3 g/t Ag.
Drill hole SCR-195, the most northwesterly hole drilled to date at Buena Suerte, intercepted 6.09 meters
averaging 0.466 g/t Au beginning at three-meters from surface. The drill hole is a 50-meter step-out from
previous drilling and additional drilling is planned to test further continuity of the northwest
extension.
Japoneses Zone Drilling
At Japoneses, drilling has identified numerous mineralized intersections along the full extent of
the zone’s western boundary where future pit optimization may be achieved between the
potential convergence of the conceptual Japoneses and Buena Suerte open pits.
Assay highlights include:
• SCR-198 intercepted 19.81 m averaging 0.465 g/t Au from surface.
• SCR-197 intercepted 7.62 m averaging 0.513 g/t Au from 9.14 meters.
• SCR 188 intercepted 6.10 m averaging 0.560 g/t Au from surface.
Most notably, drill hole SCR-198 intercepted 19.81 meters averaging 0.465 g/t Au from surface,
while approximately 50 meters to the south, drill hole SCR-197 intercepted 7.62 meters averaging
0.513 g/t Au from 9.14 meters below surface. Numerous additional RC drill holes have been
completed along the western flank of Japoneses and pending assay results are expected to
contribute further to the mineralization of the zone.
Mel Herdrick, VP of Exploration, commented, “Our drilling to define the 500-meter-long west side of
Japoneses ridge is an important component of the upcoming PEA, as the most recent results increase the
potential that we may combine the conceptual Japoneses and Buena Suerte pits into a single pit. It is very
encouraging that drilling identified a 200-meter-long high-grade ore zone at the northern extension of
Buena Suerte, while also expanding the size of the mineralized gold zones at Veta de Oro, El Rincon and
Bellotoso zones.”
El Rincón, Veta De Oro, Bellotoso, and Gloria Exploration Drilling
The El Rincón vein area was further tested with two RC drill holes. Drill hole SCR-174 cut an approximately
70-meter section of anomalous gold beginning at surface, where a 10.67-meter intercept averaging 0.308
g/t Au was cut between 45.72 meters to 56.39 meters. Drill hole SCR-175 cut a similarly broad anomalous
interval and, beginning at 3 meters, intercepted 3.05 meters averaging 0.836 g/t Au. The drill holes are
the furthest northwest step outs in the Rincon zone and are within the vein trend which remains open to
the northwest following outcropping quartz veins.
At Veta de Oro, drill hole SCD-045 intercepted 5.1 meters averaging 0.367 g/t Au and 4.5 meters averaging
0.327 g/t Au. SCD-045 was completed to test the vein’s northwest extension along trend towards the El
Rincon vein zone and is situated 250 meters southeast of drill hole SCD-021 at the El Rincon zone which
intercepted 21 meters averaging 1.13 g/t AuEq. SCD-045 is a substantial step out, further confirming the
continuity of the mineralization at the El Rincón – Veta de Oro – Abejas Zone. Sonoro’s geological team
will be reviewing in detail the data set regarding vein characteristics, mineralogy, and metal zonation in
relation to Cerro Caliche’s evolving low sulfidation epithermal model, to determine the best sections for
future drilling of this promising area.
The Bellotoso vein zone drilling consisted of four core drill holes and two RC holes. The best interval from
these holes is from core hole SCD-044 which intercepted 10.5 meters averaging 0.86 g/t AuEq. The other
3 core holes are located in the far northwest part of the Bellotoso vein trend and include SCD-047 which
is a step-out to a secondary parallel vein zone. The Bellotoso strike is parallel to El Rincon and is separated
in part by a rhyolitic dike that appears to be source of the gold bearing fluids that mineralized the local
area.
At Gloria, five exploration holes were drilled approximately 500 meters northwest of Buena Suerte, in an
area with historical artisanal gold workings. Drill hole SCR-179 intercepted 7.62 meters averaging 0.182
g/t Au and SCR-181 intercepted 1.52 meters averaging 1.47 g/t Au. The remaining holes contained minor
intervals with low gold content without any significant gold bearing zones. The Gloria zone will be further
assessed to determine its prospectively further to the northwest, where previous drilling demonstrated
more consistent mineralization.
The low-grade intercepts indicate drilling cut deeper than the ‘ideal’ low sulfidation epithermal boiling
zone. This observation is supported by low gold to silver ratios with low silver content as illustrated by
the only anomalous interval from drill hole SCR-181 (from 22.86 to 24.38 meters) of 1.47 g/t Au and 0.15
g/t Ag illustrates. This mineralization is typical of deeper intersections at or just below the base of
epithermal vein boiling zone.
Assay Results from Reverse Circulation Drilling
Cerro Caliche Project, Holes Composites with Cut-off 0.15 Au g/t
Hole Target
From To Interval Au Ag AuEq
Meters g/t g/t g/t
SCR-174 EL RINCON
24.38 38.10 13.72 0.230 5.60 0.310
and 45.72 56.39 10.67 0.308 2.50 0.343
and 67.06 77.72 10.66 0.237 1.90 0.264
and 83.82 89.92 6.10 0.209 0.80 0.221
SCR-175 EL RINCON 3.05 6.10 3.05 0.836 1.50 0.857
and 12.19 16.76 4.57 0.198 0.90 0.211
SCR-179 GLORIA 13.72 21.34 7.62 0.182 1.40 0.202
SCR-181 GLORIA 22.86 24.38 1.52 1.470 0.15 1.472
SCR-182 EL BELLOTOSO
45.72 53.34 7.62 0.190 2.10 0.220
and 56.39 64.01 7.62 0.302 1.20 0.319
and 73.15 76.20 3.05 0.177 3.90 0.233
and 83.82 92.96 9.14 0.339 0.50 0.347
SCR-183 EL BELLOTOSO 16.76 21.34 4.58 0.266 2.50 0.302
and 28.96 45.72 16.76 0.264 1.00 0.278
SCR-184 BUENA SUERTE 79.25 97.54 18.29 0.357 0.70 0.367
SCR-186 BUENA SUERTE
18.29 21.34 3.05 0.217 0.70 0.227
and 25.91 28.96 3.05 0.380 0.20 0.382
and 60.96 67.06 6.10 0.516 0.30 0.520
and 73.15 97.54 24.39 1.206 1.50 1.227
includes 73.15 86.87 13.72 1.853 1.10 1.868
SCR-187 BUENA SUERTE 32.00 39.62 7.62 0.481 4.90 0.551
and 94.49 103.63 9.14 0.522 21.90 0.835
SCR-188 JAPONESES
0.00 6.10 6.10 0.560 6.20 0.649
and 28.96 33.53 4.57 0.278 0.70 0.288
and 39.62 44.20 4.58 0.211 0.20 0.213
SCR-189 JAPONESES
4.57 12.19 7.62 0.322 3.40 0.371
and 16.76 22.86 6.10 0.314 0.80 0.325
and 56.39 59.44 3.05 0.285 0.20 0.287
SCR-190 JAPONESES
4.57 7.62 3.05 0.245 0.70 0.255
and 18.29 21.34 3.05 0.574 0.50 0.582
and 32.00 36.58 4.58 0.261 0.20 0.265
and 39.62 44.20 4.58 0.263 0.50 0.270
SCR-191 BUENA SUERTE
28.96 32.00 3.04 0.409 0.70 0.418
and 36.58 39.62 3.04 0.244 0.20 0.246
and 50.29 67.06 16.77 0.451 1.00 0.466
SCR-192 JAPONESES 3.05 33.53 30.48 0.350 2.60 0.387
SCR-193 BUENA SUERTE 19.81 27.43 7.62 0.448 1.10 0.463
SCR-194 BUENA SUERTE and 64.01 73.15 9.14 0.466 27.30 0.856
and 77.72 83.82 6.10 0.267 1.90 0.294
SCR-195 BUENA SUERTE 3.05 9.14 6.09 0.466 1.70 0.491
Cerro Caliche Project, Holes Composites with Cut-off 0.15 Au g/t
Hole Target
From To Interval Au Ag AuEq
Meters g/t g/t g/t
SCR-196 JAPONESES
0.00 12.19 12.19 0.308 2.70 0.347
and 22.86 35.05 12.19 0.378 1.50 0.399
and 41.15 71.63 30.48 0.290 3.40 0.338
SCR-197 JAPONESES 9.14 16.76 7.62 0.513 9.00 0.636
and 24.38 33.53 9.15 0.312 2.00 0.345
SCR-198 JAPONESES 0.00 19.81 19.81 0.465 5.00 0.538
and 24.38 38.10 13.72 0.284 2.00 0.308
SCR-199 JAPONESES
1.52 12.19 10.67 0.234 2.10 0.264
and 22.86 32.00 9.14 0.214 0.60 0.223
and 33.53 36.58 3.05 0.207 0.40 0.213
SCR-200 JAPONESES 3.05 19.81 16.76 0.447 2.00 0.478
Assay Results from Core Drilling
Cerro Caliche Project, Holes Composites with Cut-off 0.15 Au g/t
Hole Target
From To Interval Au Ag AuEq
Meters g/t g/t g/t
SCD-044 EL BELLOTOSO
24.00 34.50 10.50 0.690 12.30 0.866
includes 24.00 25.00 1.0 2.325 41.10 2.912
and 52.40 53.45 1.05 1.412 2.90 1.453
and 56.25 57.60 1.35 2.913 10.40 3.062
SCD-045 VETA DE ORO 17.00 22.10 5.10 0.367 2.10 0.397
and 69.50 74.00 4.50 0.327 3.20 0.373
SCD-046 EL BELLOTOSO
41.50 45.00 3.50 0.293 1.30 0.311
and 75.45 78.50 3.05 2.257 2.30 2.290
includes 75.45 77.00 1.55 4.241 3.50 4.291
SCD-047 EL BELLOTOSO 6.00 9.00 3.00 0.306 0.80 0.317
SCD-048 EL BELLOTOSO 48.30 53.80 5.50 0.489 0.30 0.493
Drill collar locations, azimuths and dips for the drill holes included are provided in the table below.
Drill Collar Locations (NAD 1927 UTM Zone 12N)
Drill Hole Zone Easting Northing Elevation Depth (m) Dip Azimuth
SCR-174 El Rincón 536205 3366652 1420 109.73 -50 62
SCR-175 El Rincón 536155 3366708 1388 112.78 -45 52
SCR-176 Gloria 536401 3365550 1284 100.58 -45 234
SCR-177 Gloria 536307 3365580 1268 106.68 -45 261
SCR-178 Gloria 536467 3365559 1277 100.58 -45 247
SCR-179 Gloria 536349 3365649 1292 70.1 -45 234
SCR-180 Gloria 536241 3365613 1281 100.58 -45 268
Drill Collar Locations (NAD 1927 UTM Zone 12N)
Drill Hole Zone Easting Northing Elevation Depth (m) Dip Azimuth
SCR-181 Gloria 535902 3365661 1231 100.58 -45 55
SCR-182 El Bellotoso 536657 3366543 1361 100.58 -45 35
SCR-183 El Bellotoso 536711 3366520 1356 100.58 -45 55
SCR-184 Buena Suerte 536468 3365282 1331 140.21 -45 242
SCR-185 El Quínce 536429 3364974 1380 100.58 -45 235
SCR-186 Buena Suerte 536465 3365298 1318 129.54 -45 268
SCR-187 Buena Suerte 536428 3364975 1380 103.63 -45 55
SCR-188 Japoneses 536761 3365010 1380 60.96 -45 235
SCR-189 Japoneses 536842 3365129 1357 100.58 -45 235
SCR-190 Japoneses 536789 3364994 1400 60.96 -45 235
SCR-191 Buena Suerte 536441 3365343 1278 91.44 -45 230
SCR-192 Japoneses 536876 3365001 1348 82.3 -45 235
SCR-193 Buena Suerte 536399 3365357 1269 51.82 -52 243
SCR-194 Buena Suerte 536472 3365215 1377 100.58 -45 235
SCR-195 Buena Suerte 536394 3365382 1252 60.96 -45 250
SCR-196 Japoneses 536630 3365258 1324 73.15 -45 235
SCR-197 Japoneses 536614 3365206 1324 48.77 -45 235
SCR-198 Japoneses 536597 3365232 1327 42.67 -45 235
SCR-199 Japoneses 536651 3365136 1333 41.15 -45 235
SCR-200 Japoneses 536658 3365113 1337 42.67 -45 235
SCD-044 El Bellotoso 536879 3366095 1419 101 -45 55
SCD-045 Veta de Oro 536532 3366186 1428 76.6 -45 205
SCD-046 El Bellotoso 536253 3366991 1403 122.2 -45 55
SCD-047 El Bellotoso 536663 3367015 1394 80.4 -45 55
SCD-048 El Bellotoso 536446 3366754 1412 115.4 -45 55
Quality Assurance/Quality Control (“QA/QC”) Measures and Analytical Procedures
Drill samples are collected with an airstream cyclone and passed into a splitter that divides each sample
into quarters. The quartered samples are then bagged and sealed with identification. The sample group
has blanks, standards and duplicates inserted into the sample stream.
Bureau Veritas (BV) collects the samples and transports them directly to the preparation laboratory in
Hermosillo, Sonora. At the laboratory, part of each sample is reduced through crushing, splitting and
pulverization. About 200 grams are sent by BV to their Vancouver, Canada laboratory and dissolved in
aqua regia for multi-element ICP analysis, including silver. Of these samples, 30 grams undergo fire assay
in Hermosillo for gold by reducing the fire assay to a concentrated button of material that is dissolved in
acids and the gold content determined by atomic absorption.
No QA/QC issues were noted with the results received from the laboratory.
Geologic Description
Cerro Caliche is located 45 kilometers east southeast of Magdalena de Kino in the Cucurpe-Sonora Mega-
district of Sonora, Mexico. Multiple historic underground mines were developed in the concession
including Cabeza Blanca, Los Cuervos, Japoneses, Las Abejas, Boluditos, El Colorado, Veta de Oro and
Espanola. Mineralization types of the Cucurpe-Sonora Mega-district include variants of epithermal low
sulfidation veins and related mineralized dikes and associated volcanic domes. Local altered felsic dikes
cut the mineralized meta-sedimentary rock units and may be associated with mineralization both in the
dikes and meta-sedimentary rocks.
Host rocks include Jurassic-Cretaceous meta-sedimentary rock units including argillite, shale, quartzite,
limestone, quartz pebble conglomerate and andesite. Younger intrusive rock consisting of medium
coarse-grained granodiorite-granite is present in the westerly parts of the concessions near the historic
Cabeza Blanca Mine. It is apparent that veining cuts and pervasively alters the intrusive stock. Rhyolite
occurs in irregular bodies distributed in higher elevations in the northerly part of the concession, including
the Rincon area, where it occurs as flows, sills, dikes and rhyolite domes. Part of the rhyolite is mineralized
and appears to be related to epithermal gold mineralization throughout the property.
Qualified Person Statement
Stephen Kenwood, P.Geo., a Director of Sonoro, is a Qualified Person within the context of National
Instrument 43-101 (NI 43-101) and has read and approved this news release. Readers are cautioned that
the presence of mineralization on historic mines adjacent to or on Cerro Caliche is not necessarily
indicative of gold mineralization in the concessions held by the Company.
About Sonoro Gold Corp.
Sonoro Gold Corp. is a publicly listed exploration and development company with a portfolio of
exploration-stage precious metal properties in Sonora State, Mexico. The Company has highly
experienced operational and management teams with proven track records for the discovery and
development of natural resource deposits.
On behalf of the Board of Sonoro Gold Corp.
Per: “Kenneth MacLeod”
Kenneth MacLeod
President & CEO
For further information, please contact:
Sonoro Gold Corp. - Tel: (604) 632-1764
Email: [email protected]
Forward-Looking Statement Cautions: This press release contains certain "forward-looking statements" within the meaning of Canadian
securities legislation, relating to, among other things, the Company's plans for the exploration, development and operations at the above-
described Cerro Caliche Concessions, located in the municipality of Cucurpe, Sonora, Mexico, including statements regarding the
Company’s plans for additional exploration drilling, an anticipated update of the current resource estimate for Cerro Caliche to be included
in a Micon International 43-101 technical report to be published in Q3 2021, a planned preliminary economic assessment (“PEA”) to be
published in 2021 reporting on the viability of a proposed 20,000 tonne/day mining operation, and other material conditions set out above
on which the Company’s development plans are dependent. Although the Company believes that such statements are reasonable based
on current circumstances, it can give no assurance that such expectations will prove to be correct. Forward-looking statements are
statements that are not historical facts; they are generally, but not always, identified by the words "expects", "plans", "anticipates",
"believes", "intends", "estimates", "projects", "aims", "potential", "goal", "objective", "prospective" and similar expressions, or that events
or conditions "will", "would", "may", "can”, "could" or "should" occur, or are those statements, which, by their nature, refer to future
events. The Company cautions that forward-looking statements are based on the beliefs, estimates and opinions of the Company's
management on the date the statements are made and they involve a number of risks and uncertainties, including the possibility of
unfavourable exploration and test results, unfavourable results of the contemplated PEA of the Cerro Caliche project, the lack of sufficient
future financing to carry out exploration and development plans and unanticipated changes in the legal, regulatory and permitting
requirements for the Company’s exploration programs. There can be no assurance that such statements will prove to be accurate, as
actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place
undue reliance on forward-looking statements. The Company disclaims any intention or obligation to update or revise any forward-
looking statements, whether as a result of new information, future events or otherwise, except as required by law or the policies of the
TSX Venture Exchange. Readers are encouraged to review the Company’s complete public disclosure record on SEDAR at www.sedar.com.
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture
Exchange) accept responsibility for the adequacy or accuracy of this release.