Events In The Watershed

City Nature Challenge: Dusk Walk at Briar Hill Preserve

Friday, April 26 at 10:30 pm

Community Science

Family Friendly


Help us document the biodiversity at Briar Hill Preserve using iNaturalist. City Nature Challenge is a global celebration of biodiversity in and around urban areas. Over 1.9 million observations and over 50,000 species were identified by 73,000 participants in 2023.


We will work to document as many trees, plants, animals and insects we can find at Briar Hill!


Please note:

  • Participants should bring an electronic device with iNaturalist downloaded and a free account already set-up or a camera
  • Dress for the weather
  • Be prepared for muddy and wet trails
  • For those unfamiliar with iNaturalist, see this video on our YouTube channel:


We are happy to offer our programs at no cost to participants, but if you are able, a $10 suggested donation would be greatly appreciated. Wissahickon Trails is a local, community-supported nonprofit. Our budget depends entirely on the generosity of our supporters—individuals, foundations, and corporations.  Donate online today.

Event Details
  • Location

    205 W Skippack Pike, Ambler, PA (enter from Prophecy Creek Park)

  • Contact

  • Accessibility

    Participants will need to walk approximately 1 mile along an uneven natural trail. Participants will need to take photographs from a variety of levels, and should be prepared to go slightly off trail as well. Restrooms are not available.

  • Parking

    Prophecy Creek Park parking lot

  • Price

    Free; Donations Welcome