Integra Resources Corp. (TSX-V: ITR) (NYSE American: ITRG) is pleased to announce the remaining drill results from the stockpile drill program at the DeLamar Project located in southwestern Idaho. The stockpile drill program was completed in Q2 2023 and totaled 12,588 meters in 321 drill holes. This news release includes results from the remaining 145 drill holes representing 4,244 m.
The stockpile drill program at DeLamar was designed to test a large portion of the estimated 60 million tonnes of gold and silver mineralized material that was stockpiled and/or used as backfill at the Project by previous operators. The Company believes that oxide-and-mixed gold and silver mineralized material from the stockpiles and backfill at DeLamar has the potential to increase the heap leach mine life of the Project in future phases and further bolster the robust economics presented in the 2022 Pre-feasibility Study.
Integra intends to release an updated mineral resource estimate for DeLamar in Q3 2023 which will include the stockpile and backfill mineralized material. In Q4 2023, the Company expects to submit the Mine Plan of Operations at DeLamar to the United States Bureau of Land Management. The MPO is the first significant step in the National Environmental Policy Act permitting process as it represents the proposed action for the Project.
Latest Drilling Highlights:
Drill Program Highlights:
The stockpile and backfill program tested 4 targets at DeLamar and 2 targets at Florida Mountain, representing approximately 49 Mt and 11 Mt of mineralized material respectively. At DeLamar, the targets included the North DeLamar and Sommercamp Backfill as well as Stockpiles 1 and 2. At Florida Mountain, the targets included the Jacobs Gulch Stockpile and Tip Top Backfill. Highlight intercepts from each target of the drill program released since December 2022 include:
DeLamar
Florida Mountain
Integra’s President, CEO & Director, Jason Kosec commented: “The overall results from the stockpile drill program have confirmed the Company’s initial belief that the gold and silver mineralized material stockpiled or used as backfill by previous operators has the potential to significantly increase the mine life of the heap leach operation in future phases. The drill program has demonstrated the strong grade continuity and gold and silver mineralization present within this previously mined material. Located at surface, and in some cases on top of the in-situ gold and silver resources, the mineralized stockpiles and backfill have the potential to be mined at a reduced cost in future economic studies as the material was processed by previous operators and is adjacent to proposed infrastructure. An updated mineral resource estimate on the stockpiles and backfill is expected to demonstrate the potential for this material to bolster the robust production profile and economics outlined in the PFS.”
Key Observations and Next Steps:
Follow the link below to view a table of selected intercepts from the DeLamar backfill and stockpile drill program:
https://integraresources.com/site/assets/files/2572/2023-august-final_drill_tables.pdf
Follow the link below to view a cross section of the North DeLamar Backfill:
https://integraresources.com/site/assets/files/2572/ndm_section_aug23.pdf
Follow the link below to view a cross section of the Sommercamp Backfill:
https://integraresources.com/site/assets/files/2572/sommerc_bf_aug23.pdf
Follow the link below to view cross sections of Stockpile 1 and 2:
https://integraresources.com/site/assets/files/2572/sp1_stockpile_aug23.pdf
https://integraresources.com/site/assets/files/2572/sp2_stockpile_aug23.pdf
Follow the link below to view a cross section of the Jacobs Gulch Stockpile:
https://integraresources.com/site/assets/files/2572/jg_stockpile_aug23.pdf
Follow the link below to view a cross section of the Tip Top Backfill:
https://integraresources.com/site/assets/files/2572/tt_bf_aug23.pdf
Follow the link below to view drill collar location maps for the DeLamar stockpile/backfill drill program:
https://integraresources.com/site/assets/files/2572/dc_location_dm_2023-08sm.pdf
Follow the link below to view drill collar location maps for the Florida Mountain stockpile/backfill drill program:
https://integraresources.com/site/assets/files/2572/dc_fm_2023-08sm.pdf
Sampling and QA/QC Procedure
Thorough QA/QC protocols are followed on the Project, including insertion of duplicate, blank and standard samples in the assay stream for all drill holes. The samples are submitted directly to American Assay Labs in Reno, Nevada for preparation and analysis. Analysis of gold is performed using fire assay method with atomic absorption (“AA”) finish on a 1 assay ton aliquot. Gold results over 5 g/t are re-run using a gravimetric finish. Silver analysis is performed using ICP for results up to 100 g/t on a 5-acid digestion, with a fire assay, gravimetric finish for results over 100 g/t silver.
Execution of Drill Program – Methodology
The stockpile drill program was executed at 60 m collar spacings with select 30 m infill test holes to further verify grade variability in future resource estimation and to provide additional metallurgical samples. All drilling was vertical through the entirety of the stockpiles and backfill material. The drilling was conducted by a combination of Sonic and traditional reverse circulation (“RC”) with casing advance drilling methods. Both these drilling methods maintain high sample quality and integrity throughout the drilling process. Additionally, the two drilling methods provided a basis for continuity comparison. Sampling was conducted at 1.5 m intervals for the whole of the drilling program with all samples sent to a third-party lab for analysis. The Sonic Drilling provided material suitable for ongoing comprehensive metallurgical test work.
Qualified Person
The scientific and technical information contained in this news release has been reviewed and approved by Raphael Dutaut, Ph.D (P.Geo), Integra’s Vice President, Exploration and Tim Arnold (PE, SME), Integra’s Chief Operating Officer. Both individuals are “Qualified Persons” as defined in National Instrument 43- 101 – Standards of Disclosure for Mineral Projects.
DeLamar Project Overview
The past producing DeLamar Project, which includes the adjacent DeLamar and Florida Mountain gold and silver deposits, is located in Owyhee County in southwest Idaho. Since acquiring the Project in 2017, the Company has demonstrated significant resource growth and conversion while providing robust economic studies in its maiden Preliminary Economic Assessment and PFS. An independent technical report for the PFS on the DeLamar Project has been prepared in accordance with the requirements of NI 43-101 and is available under the Company’s profile at www.sedarplus.ca
About Integra Resources
Integra is one of the largest precious metals exploration and development companies in the Great Basin of the Western USA. Integra is currently focused on advancing its three flagship oxide heap leach projects: the past producing DeLamar Project located in southwestern Idaho and the Wildcat and Mountain View Projects located in western Nevada. The Company also holds a portfolio of highly prospective early-stage exploration projects in Idaho, Nevada, and Arizona. Integra’s long-term vision is to become a leading USA focused mid-tier gold and silver producer.
With the addition of the Las Chispas mine – one of the world... READ MORE
EMP Metals Corp. (CSE: EMPS) (OTCQB: EMPPF) is pleased to announc... READ MORE
Santacruz Silver Mining Ltd. (TSX-V:SCZ) is pleased to announc... READ MORE
Metal Energy Corp. (TSX-V: MERG) (OTCQB: MEEEF) is pleased to an... READ MORE
Outcrop Silver & Gold Corporation (TSX-V: OCG) (OTCQX: OCGSF)... READ MORE