Stone Zoo
Snow leopards, black bears, flamingos, gibbons, and North American habitats occupy a walkable site near the Middlesex Fells.

Artwork inspired by Blanche Ames Ames
Snow leopards, black bears, flamingos, gibbons, and North American habitats occupy a walkable site near the Middlesex Fells. The zoo’s smaller scale makes repeat observation practical. Cold-climate adaptations, species-survival plans, seasonal behavior, and animal choice become clearer when visitors wait rather than race between exhibits.
Check keeper-talk and seasonal exhibit schedules, then revisit two habitats after a loop. Winter can be rewarding for cold-adapted species, while the holiday lights event uses separate admission. Some paths are sloped and winter surfaces can be icy. Special-event lighting may limit regular animal viewing and requires its own ticket.
- Opened
- 1905
- Setting
- Near Spot Pond
- Scale
- Compact walking loop
Quick guide
- Revisit one animal
- Behavior changes over a short interval.
- Look for adaptations
- Coats, paws, and shelter answer climate.
Know before you go
- Revisit one animal
- Behavior changes over a short interval.
- Look for adaptations
- Coats, paws, and shelter answer climate.
- Ask about choice
- An empty window can indicate good care.
- Separate ZooLights
- The evening event is a different visit.
Good to know
Some paths are sloped and winter surfaces can be icy. Special-event lighting may limit regular animal viewing and requires its own ticket.
Notice these
- Himalayan Highlands
- Yukon Creek
- Caribbean Coast