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- places
  nature preserves to explore
  Stoneleigh: a natural garden
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- before you go
  days & hours
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  trail maps for your smartphone
  dos & donts
  dog rules
  photography
  deer management
make a date with nature

With 23,000+ acres of land across two states and 13 counties, there’s a lot to explore.
events & news
- events
  general events
  volunteer events
  nextgen events
  events with member perks
  garden tours
  plan your event
- news
  press releases
  news from the preserves
  news from the garden
  all news
find yourself outside

From yoga to bird walks to volunteering, we offer events year-round.
what we do
- save open space
  why protecting land matters
  how conservation works
  community green spaces
- care for nature
  caring for our preserves
  caring for our garden
  stewardship planning
  bird conservation
- connect people to the outdoors
  at our preserves & garden
  in your community
  nature for all
- about us
  mission & history
  staff & leadership
  our fiscal approach
  our values
  careers
why protecting land matters

Every acre we save cleans and cools the air we breathe, soaks up floodwaters, provides wildlife with habitat, filters the water we drink, and brings humans improved health and joy.
take action
- give
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  renew membership
  other ways to give
  member benefits
- partner
  become a corporate sponsor
  our sponsors
- volunteer
  ways to volunteer
  upcoming volunteer events
  be a Force of Nature®
  Stoneleigh Ambassadors
  corporate volunteering
- get involved
  our NextGen community
  in your community
  in your own space
donate now

More than ever, “forever” depends on what we do today. Together we can make a difference.
resources
- for landowners
  conservation easement landowners
  sell or donate your land
  conserve your land
- for municipal partners
  Growing Greener: Conservation by Design
  planning & landscape architecture
  land conservation consulting
  open space ballot referendums
  PECO Green Region
- land management
  stewardship planning
  stewardship handbook
  other resources
- for gardeners
  smart plants choices
  helpful habits
  bring life to your garden
natives are nice

Native plants feed native insects, which are the foundation of life on this planet. Every yard, garden, and patio pot needs more natives.
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Stardust! Summer Celebration

Stardust: It’s literal. It’s metaphorical. And when it touches us, it’s magical! Soaring trees. Tranquil vistas. Gardens full of natural beauty and life. Let the magic of Stoneleigh awe and inspire you as we gather for Stardust—Natural […]

June 5 @ 6:30 pm - 9:30 pm

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Friday Night Lights

ChesLen Preserve

music. without walls. Picture this: warm summer breezes, live music, locally crafted cider, wine and beer, s’mores, and unforgettable sunset views at one of the […]

June 26 @ 7:00 pm - 10:00 pm

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Beats & Brews

Binky Lee Preserve

music. without walls Join us for a magical early-fall evening where music, nature, and community come together beneath crisp autumn skies. Enjoy live music from […]

September 19 @ 6:00 pm - 9:00 pm

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pints on the preserve

Name: Pints on the Preserve
Start: 2026-08-08T15:00:00-04:00
End: 2026-08-08T19:00:00-04:00
Location: ChesLen Preserve