 Maiden Choice Run, a small tributary to Gwynns Falls, flows along the boundary between Yale Heights and Loudon Park as well as the Irvington boundary.In 2008, the stream was selected for a $1.4 million urban stream restoration project as part of efforts to improve the water quality of Chesapeake Bay tributaries.Continuing efforts to improve water quality of the Gwynns Falls watershed resulted in a $1.6 million restoration project for Maiden Choice Run in December 2009.