Appreciate the rich history and natural beauty of Maryland’s most unique and dramatic river valley. Managed by Patapsco Heritage Greenway.
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How Old is That? A brief introduction to archaeological dating methods
Join Dr. Kyla Cools, Heritage Program Manager for Patapsco Heritage Greenway, as she talks about some of the ways in which archaeologists are able to date…
Fall 2026 Biological Stream Monitor Training (using Macroinvertebrates)
This is a field training to become certified to monitor streams according to Izaak Walton League/Save Our Streams protocols. Come learn how to monitor streams…
PHG & CRTT Tree Maintenance & Invasive Removal: Maiden Choice Ln
Join Patapsco Heritage Greenway and Catonsville Rails to Trails in cleaning up the trail and setting up our trees for winter! Come maintain the Short Line…
Native Plants at the Oella Entrance Garden
Join us for this FREE event at the Oella Entrance Garden to learn about native plants. Be sure to bring your energy & enthusiasm! Information for the Event…
Friends of Oella Cemetery: Fall Kickoff Cleanup
Join the Historic Oella Cemetery for their kickoff fall cleanup! Friends of Oella Cemetery is leading this event and could use some additional helping hands!…
PHG & CRTT Tree Maintenance & Invasive Removal: Prospect Ave
Join Patapsco Heritage Greenway and Catonsville Rails to Trails in cleaning up the trail and setting up our trees for winter! Come maintain the Short Line…
Patapsco Heritage Greenway 2026 Annual Meeting
Please join us for our annual meeting in the Hockley Room at Howard County’s Elkridge Branch Library (6540 Washington Blvd, Elkridge, MD 21075) featuring guest…
PHG Festival del Río!
Join Patapsco Heritage Greenway in celebrating Hispanic Heritage Month with a fun & educational day in Patapsco Valley State Park! Celebrate Hispanic Heritage…
PHG & CRTT Tree Maintenance & Invasive Removal: Shady Nook Court
Join Patapsco Heritage Greenway and Catonsville Rails to Trails in cleaning up the trail and setting up our trees for winter! Come maintain the Short Line…
An Evening in the Patapsco Valley
Join Patapsco Heritage Greenway for An Evening in the Patapsco Valley on Wednesday, October 7, 2026 at 6 PM. Enjoy an evening of food, drinks, and conversation…
PHG Cleanup & Invasive Removal: Milbrook Elementary School
Join Patapsco Heritage Greenway in cleaning up trash and remove invasive species at MES in the Patapsco River watershed! Come clean up trash with Patapsco…
PHG Fall Family Day on the Trolley Trail
Join PHG to learn about the Patapsco River Valley through hands-on family activities including crafts, scavenger hunts, and fun bug finds! Join Patapsco…
Friends of Oella Cemetery: Fall Wrap-Up Cleanup
Join the Historic Oella Cemetery for their wrap-up cleanup event for the fall! Friends of Oella Cemetery is leading this event and could use some additional…
Getting Salty with Water Quality!
Come join us at this interactive event where we document local chloride levels in streams and learn about general water quality. Come join us at this…
PHG Cleanup: Lansdowne Middle School
Join Patapsco Heritage Greenway in cleaning up trash around Lansdowne Middle School/ Lansdowne Road in the Patapsco River watershed! Come clean up trash with…