Geologic Technician / Core Cutter

Position Summary Based at our facility in Mariposa, California the Geologic Technician / Core Cutter supports the Exploration and Geology teams by safely processing diamond drill core and assisting with geological data. This position is responsible for core cutting, sampling, labeling, and maintaining a safe, organized core facility. The role requires a strong commitment to safety, attention to detail, and the ability to work in a physically demanding mining and exploration environment. Key Responsibilities Core Processing & Sampling Cut diamond drill core using core saws in accordance with geologist instructions and sampling protocolsLabel, bag, and prepare samples for shipment following chain-of-custody and QA/QC requirementsMaintain sample integrity and accurate documentationPhotograph core and assist with core layout, orientation, and archivingEnsure proper handling, storage, and security of drill core Geological Support Assist geologists with core handling, logging preparation, and sample selectionRecord basic geological measurements and observations as directedSupport QA/QC programs including blanks, standards, and duplicatesAssist with core recovery tracking and reconciliation of samples Health, Safety & Environmental Compliance Work in compliance with Cal/OSHA, MSHA (where applicable), and site-specific safety requirementsPerform pre-operational inspections of core saws and equipmentMaintain a clean, organized, and hazard-free core shack or facilityUse required PPE at all times (eye protection, hearing protection, gloves, steel-toe boots, etc.)Immediately report hazards, near misses, and incidents General Duties Perform routine cleaning and maintenance of core saws and related equipmentAssist with inventory management of sampling supplies and consumablesSupport other exploration or geology-related tasks as assignedWork collaboratively with geologists, drillers, and contractors Required Qualifications High school diploma or equivalentValid driver's licenseFamiliarity with diamond drill core handling and sampling proceduresAbility to safely perform physical work, including lifting and moving core boxesStrong attention to detail and ability to follow written and verbal instructionsBasic computer skills for data entry and sample tracking Preferred Qualifications Post-secondary education in Geology, Earth Sciences, or a related fieldExperience as a core cutter, geologic technician, or exploration laborerCal/OSHA/MSHA safety training, First Aid/CPRExperience with geological databases, logging software, or core photography systems Work Environment Work will occur in a core facility but may require field work or travel to an underground mine site.Exposure to water, dust, noise, vibration, and varying temperaturesShift work, weekends, or rotational schedules may be required Physical Requirements Ability to lift up to 50 lbsAbility to stand, bend, kneel, and perform repetitive tasks for extended periodsAbility to work safely around industrial equipment Compensation The pay range for this position will be $20.00 - 25.00 per hour, depending on qualifications and experience. This position is non-exempt and eligible for overtime. Equal Employment Opportunity Keystone Mines Inc. is an Equal Opportunity Employer and complies with all applicable California employment laws. We are committed to maintaining a safe, inclusive, and respectful workplace.