Intern, Geology - (Des Moines - Summer 2027)

Job Description: About the Internship The Martin Marietta Summer Geology Internship provides students with meaningful, hands-on experience in the aggregates mining industry. This approximately 10-week program offers the opportunity to apply classroom knowledge to real-world projects while developing technical, analytical, and operational skills.

Working alongside experienced geologists and mining professionals and reporting to a member of the Geology team, Geology Interns gain exposure to a variety of key areas, including exploration, resource evaluation, quality control, and geological data management. Through these experiences, interns develop a deeper understanding of how geology supports responsible resource development, operational performance, and business objectives.

Key Responsibilities

• Follow and promote Martin Marietta's safety, environmental, and ethical standards in all work activities.
• Assist with geological exploration and resource evaluation projects.
• Organize, log, and prepare drill core samples for laboratory testing.
• Relog drill cores using current geological logging standards.
• Compile, organize, and summarize laboratory testing results.
• Organize, scan, and maintain geological exploration records and historical data.
• Identify and interpret rock units and lithologic characteristics from drill core logs.
• Obtain drill hole locations and elevations and maintain geological databases and spreadsheets.
• Assist with geological mapping and data analysis to support mining operations.
• Collaborate with geology, quality control, operations, and engineering teams on ongoing projects.
• Perform all responsibilities in accordance with the Company's Mission, Vision, Values, policies, procedures, and Code of Ethical Business Conduct.

Qualifications

• Currently pursuing a bachelor's or master's degree in geology. Geological sciences, earth sciences, or a closely related field.
• Coursework in Sedimentology and Stratigraphy completed prior to the internship.
• Valid driver's license.
• Ability to work safely in an outdoor industrial environment, including quarries and mining operations.
• Strong analytical, organizational, and problem-solving skills.
• Strong verbal and written communication skills.
• Proficiency with Microsoft Office applications; GIS or geological modeling software experience is a plus.
• Ability to learn technical processes and adapt to a fast-paced work environment.

Why Martin Marietta? At Martin Marietta, we invest in developing future leaders. Our Geology Internship provides meaningful work, experienced mentors, and exposure to one of the nation's leading aggregates companies. Interns gain valuable industry experience while building relationships and technical skills that can lead to future internship opportunities and full-time positions after graduation. If you're looking for an opportunity to learn, grow, and help build the foundations of America's infrastructure, we encourage you to apply. In addition to the primary responsibilities outlined in the Job Description section, the successful candidate may be expected to take on other tasks and assignments as required, including but not limited to duties outside the typical scope of the role to support overall team operations and organizational needs. Flexibility and adaptability to evolving job demands are essential.

A member of the S&P 500 Index, Martin Marietta is an American-based company and a leading supplier of heavy building materials – including aggregates, cement, ready-mixed concrete and asphalt. Through a network of operations spanning 28 states, Canada and the Bahamas, dedicated Martin Marietta teams supply the foundational resources upon which our communities thrive. Martin Marietta's Magnesia Specialties business produces high-purity magnesia and dolomitic lime products used worldwide in environmental, industrial, agricultural and specialty applications.

At Martin Marietta, we strive to work with the best and the brightest – those who have the potential to become our company's future leaders. Each of our roughly 9,500 people shares a common purpose regardless of their professional role or work environment. Together, we utilize our diverse skills and experiences to drive our company and its extraordinary culture forward. Our aim is to build on our foundation of success and help values-driven and hardworking people realize their full potential. When you decide to invest your career in Martin Marietta, you'll know what it's like to be respected, challenged and rewarded.

In return, we offer a highly competitive benefits package, including:

• Medical
• Prescription Drug
• Dental
• Vision
• Health Care Reimbursement Account
• Dependent Care Reimbursement Account
• Wellness Programs
• Employee Assistance Plan
• Paid Holidays and Vacation
• 401(k) with Company matching
• Pension
• Salary Continuation – Short-Term Disability
• Long-Term Disability Options
• Employee Life Insurance
• Spouse & Dependent Life Insurance
• Business Travel Accident Insurance
• Direct Deposit Payroll
• Educational/Tuition Assistance Plan
• College Scholarship Program – for dependent children
• Matching Gift Program
• New Auto Purchase Discount Plans

At Martin Marietta, we are proud to be an Equal Opportunity Employer. We are committed to providing an environment of mutual respect where equal employment opportunities are available to all qualified applicants and teammates. We celebrate diversity and commit that qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.