Ranchero GOLD Announces Advancement of Comprehensive Reconnaissance Program at Santa Daniela Encouraging Field Results Confirming District Scale Potential
RANCHERO GOLD ANNOUNCES ADVANCEMENT OF COMPREHENSIVE
RECONNAISSANCE PROGRAM AT SANTA DANIELA
ENCOURAGING FIELD RESULTS CONFIRMING DISTRICT SCALE POTENTIAL
Vancouver, British Columbia, May 25 2022 – Ranchero Gold Corp. (“Ranchero” or the
“Company”) (TSX.V: RNCH) is pleased to provide an update of its exploration program currently
underway at its 100%‐owned Santa Daniela gold concessions locat ed within the prolific Sierra
Madre Occidental gold belt in Sonora, Mexico. Ranchero has successfully augmented its previous
reconnaissance targeting effort i n partnership with GoldSpot Di scoveries (GoldSpot). New
targets have been identified and previously known targets have been further refined. Initial field
visits have confirmed the presence of gold in surface sampling and the development of drill
targets is on‐going.
Highlights
Initial identification of 47 exploration targets in addition to Maiz Azul – the Company’s
first gold discovery at Santa Daniela.
GoldSpot’s machine‐learning technology has further confirmed the high prospectivity
nature of the Company’s extensive land package in excess of 22,200 hectares.
Nine targets have been identified as high priority targets.
Follow up field visits are underway at all locations including Rincon, San Francisco, and
Yaqui Sur.
Progressing towards additional drill targets by year end in addition to drilling expected
to recommence at Maiz Azul in the second half of 2022.
Bill Pincus, Chief Executive Officer and Director stated: “We h ave successfully completed
targeting based on remote image interpretation and are now actively engaged in the field
sampling and mapping new areas at our flagship Santa Daniela gold project. The work completed
so far has been yielding positive results and we remain on trac k to identify new drill targets by
year‐end.”
“The Sierra Madre Occidental, wh ere we are actively exploring, is a prolific gold belt that hosts
multiple major mining operations and significant deposits. Exp loration and development
a c t i v i t i e s a t o u r M a í z A z u l p r o s p e c t h a s a l r e a d y c o n f i r m e d o u r first gold discovery at Santa
Daniela. The addition of new prospects allows us to demonstrat e the district scale potential of
the greater Santa Daniela land package and further unlock value for our shareholders.”
Applying Machine Learning Technology to Santa Daniela
Initial prospects were identified by an Aster/Landsat satellite‐based study conducted by Perry
Remote Sensing LLC (PRS) in 2020. This work highlighted the presence of hydrothermal
alteration minerals (related to possible gold deposition) at 47 separate locations (Figure 1).
Figure 1 – Presence of Hydrothermal Alterations at 47 Locations
In 2022, Ranchero contracted GoldSpot to apply their machine‐learning (ML) technology to
further refine reconnaissance targets and identify additional areas for follow‐up visits. GoldSpot
compiled data layers including:
Newly acquired ultra‐high resolution Worldview‐3 multispectral satellite data in addition
to existing ASTER satellite data;
Regional geophysical data (magnetics) conducted by the Mexican Geological Service;
and
Rock assay data from the 2,000+ samples collected by Ranchero and the projects
previous operator.
These data sets were initially interpreted independently by GoldSpot experts and then integrated
for the ML prospectivity analysis.
Geochemical data was interpreted to characterize primary lithology as well as mineral alteration
assemblages. High resolution multispectral data was used for mineral identification, which is very
effective for identifying regions of hydrothermal alteration as sociated with epithermal
mineralization. Satellite imagery was also used to identify major structural trends (faulting).
The GoldSpot ML prospectivity analysis uses ensemble learning, whereby multiple machine
learning algorithms are used simultaneously to obtain better pr edictive performance. The input
data layers (“training”) include d Ranchero surface mapping and surface geochemical samples,
largely from the Maiz Azul area. The results are “prospectivity scores”, which were generated for
the entire concession block. A prospectivity score is the proba bility that any given pixel has the
same signature as those identified as a “target” in the training analysis.
Results of the prospectivity sco re analysis are shown in Figure 2. This data is further refined by
analyzing the “strength” of the prediction. The results of this analysis yield the final targets as
shown in Figure 3 where some of which coincide with the PRS Aster/Landsat interpretation.
The combination of the PRS and GoldSpot analyses together with other geologic factors has led
R a n c h e r o t o p r i o r i t i z e n i n e t a r g e t s ( F i g u r e 4 ) w h i c h a r e n o w u ndergoing initial mapping and
sampling. New results from field work in 2022 confirm the poten tial exploration upside of these
targets.
Figure 2 – Prospectivity Score Analysis Based on Machine‐Learning Technology
Figure 3: High Priority Targets Identified with Machine‐Learning Technology
Field Studies Underway at Santa Daniela
Ranchero geologists have conducted prospect site visits using the results of both the 2020
ASTER/Landsat and 2022 GoldSpot ML studies. Figure 4 shows the location of on‐going site visits
where encouraging results have confirmed the potential of Rincon, San Francisco, and Yaqui Sur.
Field work on the remaining prospects is expected in the upcoming months.
Figure 4: Areas of Current Prospecting Activity
Rincon
The Rincon prospect lies approximately eight kilometers south, southeast of Maíz Azul. It is
characterized by the outcrop of volcanic agglomerate and ash units capped by more recent basalt
flows. There are large areas of silica/clay alteration and numerous northwest striking quartz veins
and veinlets up to 0.5 meters in thickness.
Initial rock sampling has yielded values of 0.92 g/t Au, 0.46 g /t Au and 0.16 g/t Au together with
many samples with highly anomalous values of the indicator elements arsenic, barium and
antimony. Ongoing activity will focus on more detailed mapping and sampling particularly in the
western portion of the prospect.
Two holes were drilled by the previous operator in basalt units that Ranchero does not consider
prospective. A subsequent geophysical survey (CSAMT), conducted by the operator, identified
near surface resistive zones interpreted as possible hydrotherm al alteration. These zones have
not been tested by drilling.
San Francisco
San Francisco is located approximately four kilometers east of M a í z A z u l . T h e p r o s p e c t i s
dominated by a large (700 x 250 meter) dacite flow dome that is similar to the mineralized dacite
body found at Maíz Azul. It displays both argillic and weak to massive silica alteration over wide
areas. At higher elevations it is generally a clear silica with little iron oxide (i.e., altered sulfide).
At lower elevations, the presence of iron‐oxides is notable indicating that outcrops may be above
a main mineralized horizon. The results of initial rock sampling have yielded anomalous gold
values.
The next step of prospecting will be to expand mapping and samp ling at lower elevation
westward towards Maíz Azul.
Yaqui Sur
T h e Y a q u i S u r p r o s p e c t l i e s o n l y t w o k i l o m e t e r s s o u t h o f A l a m o s G o l d ’ s E l Y a q u i m i n e
development project. It is underl ain by tuffaceous and agglome rate rock units similar to those
found at El Yaqui. Limited sampling has found anomalous gold values. Ranchero geologists have
recently secured approval from the local landowners to access t he full prospect and this will be
the focus of near‐term exploration.
Next Steps
Ranchero has two active field crews focused entirely on prospect generation. The objective is to
complete rock sampling and mapping on the nine priority targets . Follow‐up activity on these
high priority targets will be results driven but would likely i nclude systematic sampling, detailed
mapping and possibly geophysical studies with the primary goal of drill target definition.
Field visits to the remaining prospects at Santa Daniela will t ake place subsequent to the work
currently work underway at these nine targets. Ranchero’s goal is to identify additional new drill
targets distinct from those at Maíz Azul.
Qualified Person
S c i e n t i f i c a n d t e c h n i c a l i n f o r m a t i o n i n t h i s n e w s r e l e a s e h a s been reviewed and approved by
William Pincus, CPG, who is a "qualified person" as defined by NI 43‐101.
About Ranchero Gold
Ranchero is a gold exploration and development company currently focused on its 100%‐owned
Santa Daniela project located in Sonora, Mexico. The Santa Daniela project consist of a large land
p a c k a g e i n e x c e s s o f 2 2 , 2 0 0 h e c t a r e s w i t h i n M e x i c o ’ s S i e r r a M a dr e O c c i d e n t a l – a n e w l y
emerging gold belt. The Santa Daniela project is also near a number of major gold mining
operations in the region. Maíz Azul is the Company’s most advanced prospect where exploration
efforts are underway.
On behalf of the Board of Directors of the Company:
William Pincus
Chief Executive Officer and Director
303 589 3734
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