• places
  • nature preserves to explore
  • Stoneleigh: a natural garden
  • view all
  • map
  • support these places
• before you go
  • days & hours
  • accessibility
  • 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
  • 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.

• 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
• 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.

• give
  • donate
  • become a member
  • 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.

• 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.