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Your participation and generous contributions will enable us to improve the health of the Northwest Branch. 

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Upcoming Events

Winter Stream Monitoring

Date Jan 6, 2019 1:30 pm start

At the usual site a little below the Old Randolph Rd. bridge over the NWB.

If you would like to observe,


See pictures from fall stream monitoring

Green Matters Symposium

Feb. 22, 8 a.m. - 4 p.m.

Silver Spring Civic Center

Industry experts explore creative design solutions to address the challenges and opportunities of diverse  landscapes.  Relevant for the home gardener as well as for the professional landscaper.

Find out more

Fun in the Outdoors

Rachel Carson

Hike along the Northwest Branch where Rachel Carson once gained inspiration.

Clean Up

Bring friends and help remove litter that gushing storm water and thoughtless residents have left along and in our Northwest Branch. 

Stream Monitoring

Observe as the water quality team gathers macro-invertebrates four times a year to gauge the health of the Branch, a chilly job in the winter!