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Friends of Gwynns falls leakin park

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Geology Walk

  • 17 Oct 2026
  • 10:15 AM
  • Gwynns Falls/Leakin Park - location provided after registration

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Geology Walk: Reading the Landscape

A guided tour in Gwynns Falls/Leakin Park

Join geologist Kathleen Marasco for a walk through Gwynns Falls/Leakin Park and learn to look at the landscape through a geologist’s eyes.

Where most people see an old springhouse or a small creek, a geologist sees evidence of Baltimore's past billion years.


Take a closer look

Learn to see evidence of the forces that built mountains as tall as the Alps, and the forces that wore them down to nibs.

Where did the mountains go?

Why is Baltimore located where it is?

We'll explore these questions and more as we traverse space and time in the rocks of Gwynns Falls Leakin Park.

No geology experience is needed. Kathleen welcomes everyone from curious beginners to people who already know their schist from their gneiss. There will be something to discover at every level.

What to bring

Bring water, wear sturdy shoes (sneakers are fine), and dress for the weather. If you have a hand lens,  like a loupe or a magnifying glass, bring it along for a closer look at rocks and minerals. Kathleen will also have some available to share.

Registration is required. 

Where is the park? 

On the western edge of Baltimore, right where Interstate 70 terminates.

DMS
Decimal
39° 18′ 23″ N, 76° 41′ 27″ W
39.306389, -76.690833

Contact Us

Mailing Address:

Friends of Gwynns Falls/Leakin Park
5214 Windsor Mill Rd
Gwynn Oak, Md. 21207

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