Geology of Baltimore

A large iron ring hangs from a wall, set in place many decades ago. And right below, there’s a big stone step. Look closely to see a peephole near the top. Who was spying? Join geologist Sam Glasscock to find the answer on this walk near the Inner Harbor. We will share the stories of rocks from many of our largest buildings and monuments, and you’ll discover how far away these beautiful slabs of stone traveled to find a home here in Baltimore.

On this 1.25-mile walk, view structures built with igneous, sedimentary, and metamorphic rocks that formed roughly 3.8 billion years ago in Earth’s history and were erected during the last 200 years of American history. Who knew you could see ancient fossils, touch a stone almost as old as the Earth, and get a feel for Italy all in downtown Baltimore?

You may also like the following events from The Natural History Society of Maryland:

• This Saturday, 28th February, 09:00 am, Cattail Caterpillars: A Field Exploration in Rosedale
• Next Thursday, 5th March, 12:00 am, March Fossil Club: On the Heels of Dinosaurs- Fossil Tracks and What they Reveal in Overlea, Maryland
• Next Saturday, 7th March, 09:00 am, Fossil Hunt at Stratford Hall - Fossil Club Members Only in Montross