The Glen Echo

The Arboretum's new Environmental Education Center opens on Arbor Day after being in construction since September of 2017.

Thielke Arboretum unveils new Environmental Education Center

by David Viggiano, Staff Writer May 7, 2018

One seldom comes across a better way to celebrate Arbor Day like attending the grand opening of the Environmental Education Center in Glen Rock’s very own Thielke Arboretum. The Arboretum is a wetland...

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