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Home2024-04-05T20:32:53-04:00

What FOSC does

Friends of Sligo Creek (FOSC) offers events year round in support and appreciation of Sligo Creek and adjacent parkland. Litter clean-up and invasive plant clear-out events are among the most popular FOSC activities in the spring, summer and fall. FOSC also sponsors guided outdoor explorations of different aspects of Sligo Creek flora and fauna. A wide variety of other programs throughout the year educate neighbors and users of the park about Sligo Creek’s strengths and challenges. FOSC also monitors the creek, advocating for civic policies that will support a healthier Sligo.

FOSC invites you to visit the creek, volunteer at an upcoming event, attend a program, advocate for the Creek, and join FOSC.

Sligo Stream Monitoring for Macroinvertebrates on Sun, April 7, 3:00pm

Join a team of volunteers from FOSC, Nature Forward and other groups to monitor spring macroinvertebrates on Sunday, April 7 at 3:00pm. The rain date is Sunday, April 14 at 3:00pm. The closest address to the neighborhood paved access trail leading to the stream is 1400 Drexel St, Takoma Park, MD 20912. The geolocation for the trailhead is 38.977537, -76.986091. There is street parking available.

Sweep the Creek Clean-Ups Watershed-Wide on Sat, April 20 and Sun, April 21

Join the Sweep the Creek litter clean up event at various times throughout the Earth Day weekend. Wonder how and why Earth Day got started? Check out the Sweep the Creek page.

The volunteer FOSC stream stewards will be in the park to hand out gloves and bags, and loan a few trash grabbers.

Click on the schedule below to see a larger version, or go to the Sweep the Creek page.

The schedule for the litter cleanups on April 20 and 21st. The cleanup in section 10M at the Long Branch Community Center has been postponed.

Note: Section 10 cleanup at the Long Branch Community Center has been postponed. Please join a cleanup at another section!

Takoma Park Earth Day Celebration
Sat. April 20, 10am – 2pm in the park

The Takoma Park Earth Day celebration coincides with the first day of the Sweep the Creek event, and FOSC will be there with hands-on activities for kids and adults. You’ll have a chance to try water quality testing, sweep litter in the park, touch invasive vines and weeds which strangle our trees, a macroinvertebrate search in the creek, and more.

Please join us – it’s going to be a blast for all ages.

(The rain date for the Earth Day event is Sun, April 21, 10am-2pm.)

Takoma Park Earth Day Celebration April 20 in Sligo Creek at Kennebec St., from 10am - 2pm.
En Espanol, una noticia por Celebracion sel Dia de las Tierra, Sabado, 20 Abril, 10am - 2pm en el Sligo parque a la Kennebec St.

News & Updates

President’s Day Sweeps pulled a huge amount of litter from Sligo

Mini-sweeps at 3 trash hot spots yielded an impressive amount of trash from the creeks over the President's Day weekend. Altogether, 101 volunteers hauled 118 bags of trash, [...]

Faring well? Sligo and Long Branch in a warming climate

Faring well? Sligo and Long Branch in a warming climate How healthy are Sligo, Long Branch and NW Branch? The Water Quality Committee of FOSC invites you [...]

Join FOSC

FOSC logo

Sligo Creek connects us. Please join FOSC and help protect and restore the Creek for everyone in our community. It’s simple to do and can be free if you wish. Membership gives you early notice of events and the FOSC newsletter.

You can make a donation too, either online (simple and secure) or by check to FOSC, P.O. Box 11572, Takoma Park, MD 20913. Thank you!

FOSC Action Hub

Sligo Creek Water WatchDog mascot

Report water pollution ASAP!
Send an email to:

[email protected]

You play an important role protecting Sligo. Please report any pollution you see in the creek or heading into a storm drain ASAP, with photos, which help County investigators find and fine the pollutors.

Spring 2024 Top Invasives

 Invasive: Italian Arum

Italian Arum is back in force around Sligo Creek and Long Branch. One of the EDRR (Early Detection, Rapid Response) invasive species, it has many little “daughter” corms attached to its main corm which makes it difficult to remove completely. Dig it out carefully. Screen the loosened soil for small “daughter” corms. There is some evidence that spraying with glyphosate is effective at killing all its corms.

FOSC Videos

See many more on the FOSC Youtube Channel

 FOSC on iNaturalist

Pine Siskins at Wheaton Branch Ponds by Stephen Davies

Heard about FOSC on iNaturalist.org but uncertain how to navigate the site or contribute your own observations? Expert birder and iNaturalist… Read more

FOSC on YouTube

Support FOSC

Donate to Friends of Sligo Creek

FOSC on Facebook

Get Involved

  • Participate in your community
  • Meet your neighbors
  • Improve your surroundings
  • Enhance your skill set
  • Advocate for the Creek
  • Arrange a group activity for your club or group
  • Receive the monthly eNewsletter
  • Get early notice of events and special opportunities
  • Have your name forwarded to your Section Steward for hands-on events
  • Contribute to special projects
  • Fund outdoor events, expert talks, equipment for invasive plant/litter removal, the kiosks in the park, water quality testing, and more
  • Support FOSC’s outreach to schools, civic groups, and all communities
  • Tell us about your experience at a FOSC event
  • Suggest an activity
  • Voice your concern about an environmental issue
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