Society of Independent Professional
Earth Scientists

 Click here for the 2024 S.I.P.E.S. Dues Form - please use this form to update your contact information as well

Click here to pay your dues online

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Next Event:

November 21, 2024

Our Presenter:

Rob Diedrich

"The Stones that Built the City: Exploring the Geology and History of Denver’s Iconic Stone Landmarks"

All attendees MUST RSVP!

Please RSVP by 11:30 a.m. on November 18

Click here to RSVP

When: Thursday, November 21, 2024, 11:30 a.m. - 1:30 p.m.

Where: Wynkoop Brewery - 1634 18th Street, Denver, CO 80202

Cost Structure:

• Members $25 (Presentation & Meal)
• Non-members $30 (Presentation & Meal)
• Walk-ins will no longer be allowed due to an issue with the Wynkoop.  Please pre-purchase a lunch to attend.  Sorry for the inconvenience!

Please feel free to share this information with any friends and colleagues who might be interested!

Mask requirements voluntary for vaccinated attendees.

Abstract:

Many of Denver’s historic buildings, constructed more than a century ago, feature stone sourced from quarries across Colorado. This presentation will explore some of the state’s most famous building stones, including the Castle Rock Rhyolite, the Lyons Sandstone and the Yule Marble.  We will examine the geologic processes that formed these distinctive rocks, the locations of the quarries, and the extraction techniques used in the early 20th-century. By highlighting iconic structures such as the Colorado State Capitol, Cheesman Memorial, Trinity Methodist Church and the Equitable Building, we’ll uncover the geology that shaped Denver’s history and the stones that built the city. 

Bio:

Rob Diedrich is a geologist with 40 years of experience in the petroleum industry, primarily with Marathon Oil Company and SM Energy, an independent Denver-based firm, where he retired in 2019 as Vice President of Resources. Rob is an active volunteer with RMAG and served as President during the Association’s centennial year in 2022. He currently chairs RMAG’s On the Rocks field trip committee, organizing geological excursions to some of Colorado’s most scenic and geologically significant locations. In addition, Rob leads urban geology tours in Denver’s Downtown and Capitol Hill districts, exploring the building stones used in the city's oldest and most historic landmarks. He holds a BS in geology from SUNY Oneonta and an MS in geology from Bowling Green State University.

WHAT IS SIPES?

The Society of Independent Professional Earth Scientists (SIPES) is the only national organization designed exclusively for the independent or consulting professional earth scientist. Members include geologists, engineers, geophysicists, geochemists, and other earth scientists. 

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Our Mission

To be the pre-eminent organization for furthering the professional business interests of independent practitioners of earth sciences. 

• Professional Competence

• Professional Business Ethics

• Presenting a favorable, credible and effective image of Society



Local Events:

Monthly Meetings

Meetings for 2024 will be held at the

Wynkoop Brewery

1634 18th Street

Denver, CO 80202