Colibri Option Partner Announces Its Next Steps for the Pilar Gold & Silver Project in Sonora
Colibri Option Partner Announces Its Next
Steps for the Pilar Gold & Silver Project in
Sonora
Dieppe, New Brunswick--(Newsfile Corp. - September 21, 2022) - Colibri Resource Corporation (TSXV:
CBI ) ("Colibri" or the "Company") is pleased to report that its option partner Tocvan Ventures (CSE:
TOC) has announced its intended next steps at the Company's Pilar Gold & Silver Project in Sonora,
Mexico.
Tocvan is in year 3 of a 5-year agreement to earn an initial 51% of Colibri's Pilar Gold & Silver Project.
For full details of Colibri's agreement with Tocvan please see the Company's news release dated
September 24th, 2019.
"We continue to be impressed by the results and progress at the Pilar Project.
The next steps
that Tocvan has laid out for Pilar are exciting as they demonstrate a potential path to a profitable
production scenario with an above average head grade."
said Ron Goguen, President & CEO of
Colibri.
Tocvan Reports:
(September 20
th
, 2022 - Select Excerpts)
At Pilar, planning is underway for the next stage of exploration and development. A bulk sample is
scheduled to begin preparation in October and November, utilizing a local heap leach facility to process
material from Pilar. An independent Qualified Professional will oversee the operations to ensure the
accuracy of the results. The outcome will provide useful data to assist in proceeding with the permitting
and development requirements for establishing a bulk test mine on-site. Exploration at Pilar will continue
with drilling scheduled to follow-up on key expansion target areas and provide infill data along
established mineralized domains for future resource calculations.
Pilar Next Steps
Bulk Sampling of Trench Material
Continued Drilling of Infill and Step-outs
2,000-meter Infill Drilling
3,000-meter Step-out and Exploration Drilling
Permitting for on-site test facilities
Updated Technical Report
Brodie Sutherland - Tocvan CEO. "
We are excited to continue that advancement with the first large
scale bulk sample at Pilar to further confirm the grade and recovery of gold and silver. This
information will lead us into permitting for our own pilot facility at Pilar… Pilar still has potential for
expansion and will remain a focus for us with continued drilling on several trends that remain open to
the southeast. Our success over the past two years has gained a lot of interest from large-scale
producers in the region, we look forward to building off that success and developing strong
relationships during the upcoming operating season and beyond."
Recap of Past Operating Season at Pilar (November 2021 to July 2022)
Trench Program
Four trenches completed, all four returned mineralization
Two trenches returned mineralization across the entire length:
T-21-2 - 19.5m at 0.61 g/t Au and 6 g/t Ag
including, 11.5m at 0.87 g/t Au and 7 g/t Ag
T-21-3 - 19.8m at 0.73 g/t Au and 8 g/t Ag
Including 8.6m at 1.27 g/t Au and 12 g/t Ag
Phase III Drilling
- 16 Drill Holes, totalling 2,944-meters highlighted by:
Main Zone
116.9m @ 1.2 g/t Au, including 10.2m @ 12 g/t Au and 23 g/t Ag
108.9m @ 0.8 g/t Au, including 9.4m @ 7.6 g/t Au and 5 g/t Ag
63.4m @ 0.6 g/t Au and 11 g/t Ag, including 29.9m @ 0.9 g/t Au and 18 g/t Ag
21.7m at 0.9 g/t Au, including 4.0m at 4.3 g/t Au and 7 g/t Ag
NEW Discovery 600-meters from Main Zone
30.5m of 0.4 g/t Au including, 1.5m of 7.6 g/t Au
NEW Discovery Trend 375-meters from Main Zone
22.9m of 0.3 g/t Au and 19 g/t Ag including, 10.7m of 0.6 g/t Au and 40 g/t Ag
54.9m at 0.3 g/t Au and 5 g/t Ag, including 13.7m at 0.6 g/t Au and 13 g/t Ag and 9.2m at 0.6 g/t Au
and
3 g/t Ag
Metallurgy
Four (4) Column Leach Samples Submitted for Analysis
Head Grade Range: 0.4 g/t Au to 5.0 g/t Au*
Gold Recovery Range: 88.9% to 96.9%*
*Important Note - Testing was completed by a local private producer and contractor based in Sonora,
Mexico. The facility used to calculate head-grade and recovery is not a certified lab.
Surface Results Highlights
Main Zone Expansion:
9.2 g/t Au and 279 g/t Ag
4-T Trend extended over 100-meters to the southeast, highlighted by:
6.6 g/t Au and 433 g/t Ag
3.5 g/t Au and 645 g/t Ag
4.9 g/t Au and 32 g/t Ag
NEW Vein Target defined over 200-meter strike, highlighted by:
1.3 g/t Au and 524 g/t Ag
1.3 g/t Au and 94 g/t Ag
1.1 g/t Au and 48 g/t Ag
South Zone reconnaissance sampling
3.1 g/t Au and 27 g/t Ag
2.5 g/t Au and 2 g/t Ag
1.0 g/t Au and 29 g/t Ag
Discussion
As the Company looks to advance Pilar towards production with bulk sampling and more advanced
metallurgical analysis it is important to note the key advantages of operating in a quality mining
jurisdiction.
Why Mine in Sonora, Mexico
1. Low-cost operations
Sonora is renowned for low-cost, open pit, heap leachable deposits
These low-cost parameters provide a shelter from inflationary prices and fluctuating metal prices
Below summarizes some local examples of the estimated Mine Costs from three producers
Minable grades typically range from 0.4 g/t Au to >1.0 g/t Au, with recoveries ranging from
50-90%
Results from Pilar are above the regional average for both parameters
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/4269/137937_im.jpg
References: San Antonio Data is from NI43-101 Technical Report, dated July 12, 2022. La Colorada Data is from NI43-101 Technical
Report, dated October 1, 2021. San Francisco Data is from NI43-101 Technical Report, dated August 28, 2020.
Table 1. - Local Examples of Estimated Mining Costs for Open Pits
2.
At surface oxide gold-silver amenable to heap-leach
Mineralization at Pilar outcrops at surface in a highly fractured and oxidized host rock.
Metallurgical studies, both bottle roll and column leach show recovery of gold to be above the
regional average giving the Company confidence in conducting bulk sampling to confirm average
head grades and recovery.
3.
Excellent infrastructure
Tocvan Projects are fully-road accessible to all current target areas.
Pilar is located 130 km southeast of the capital of Sonora, Hermosillo. Approximately 2 hours drive
from Hermosillo to the town of Suaqui Grande on paved highway. From Suaqui Grande to the
project site is approximately 30 mins on gravel road.
The El Picacho property is located approximately 145 km north of Hermosillo and 18 km southwest
of the San Francisco Mine. Access is off of a State Highway and a series of dirt roads. The site
takes approximately 2 hours to drive to from Hermosillo and has a rail line located just a few
kilometers east of the project boundary.
4.
Strong local technical expertise
The long history of mining in Sonora has fostered industry leading technical personnel in the
understanding and development of heap leach process facilities and mine development.
Tocvan is proud to have a team of local industry experts with proven experience in the
development of projects.
5.
Straightforward and established permitting process
Sonora has an established system for permitting all scales of development from exploration to full-
scale mining.
6.
A quality jurisdiction, home to major producers and potential development partners
At Pilar, three major projects are close by:
Osisko Development's San Antonio Project - 25-kilometers north
Minera Alamos' Santana Mine - 50-kilometers to the east
Argonaut Gold's La Colorada Mine - 80-kilometers to the northwest
About the Pilar Property
The Pilar Gold-Silver property is interpreted as a structurally controlled low-sulphidation epithermal
system hosted in andesite rocks. Three zones of mineralization have been identified in the north-west
part of the property from historic surface work and drilling and are referred to as the Main Zone, North Hill
and 4-T. Structural features and zones of mineralization within the structures follow an overall NW-SE
trend of mineralization. Over 22,000 m of drilling has been completed to date. Significant results are
highlighted below:
2022 Phase III Diamond Drilling Highlights include (
all lengths are drilled thicknesses
):
116.9m @ 1.2 g/t Au, including 10.2m @ 12 g/t Au and 23 g/t Ag
108.9m @ 0.8 g/t Au, including 9.4m @ 7.6 g/t Au and 5 g/t Ag
63.4m @ 0.6 g/t Au and 11 g/t Ag, including 29.9m @ 0.9 g/t Au and 18 g/t Ag
2021 Phase II RC Drilling Highlights include (
all lengths are drilled thicknesses
):
39.7m @ 1.0 g/t Au, including 1.5m @ 14.6 g/t Au
47.7m @ 0.7 g/t Au including 3m @ 5.6 g/t Au and 22 g/t Ag
29m @ 0.7 g/t Au
35.1m @ 0.7 g/t Au
2020 Phase I RC Drilling Highlights include (
all lengths are drilled thicknesses
):
94.6m @ 1.6 g/t Au, including 9.2m @ 10.8 g/t Au and 38 g/t Ag;
41.2m @ 1.1 g/t Au, including 3.1m @ 6.0 g/t Au and 12 g/t Ag ;
24.4m @ 2.5 g/t Au and 73 g/t Ag, including 1.5m @ 33.4 g/t Au and 1,090 g/t Ag
15,000 of Historic Core & RC drilling. Highlights include:
61.0m @ 0.8 g/t Au
16.5m @ 53.5 g/t Au and 53 g/t Ag
13.0m @ 9.6 g/t Au
9.0m @ 10.2 g/t Au and 46 g/t Ag
ABOUT COLIBRI RESOURCE CORPORATION:
Colibri is a Canadian-based mineral exploration company listed on the TSX-V (CBI) and is focused on
acquiring and exploring prospective gold & silver properties in Mexico. The Company has six exploration
projects of which five currently have exploration programs being executed in 2022. (1) The flagship
Evelyn Gold Project
is 100% owned and explored by Colibri, (2) the
Pilar Gold & Silver Project
(optioned to
Tocvan Ventures
) (CSE: TOC), (3) the
El Mezquite Gold & Silver Project
, (4) the
Jackie
Gold & Silver Project, and (5) the Diamante Gold & Silver Project.
3,4, and 5 are subject to earn-in
agreements by
Silver Spruce Resources
) (TSXV: SSE).
For more information about all Company projects please visit:
www.colibriresource.com
.
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in
the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy
of this release.
Notice Regarding Forward-Looking Statements:
This news release contains "forward-looking statements". Statements in this press release which are not
purely historical are forward-looking statements and include any statements regarding beliefs, plans,
expectations or intentions regarding the future. Actual results could differ from those projected in any
forward-looking statements due to numerous factors. These forward-looking statements are made as of
the date of this news release, and the Company assumes no obligation to update the forward-looking
statements, or to update the reasons why actual results could differ from those projected in the forward-
looking statements. Although the Company believes that the plans, expectations and intentions
contained in this press release are reasonable, there can be no assurance that they will prove to be
accurate.
For information contact: Ronald J. Goguen, President, Chairperson and Director, Tel: (506) 383-4274,
To view the source version of this press release, please visit
https://www.newsfilecorp.com/release/137937