Mushroom Park Home » Departments » Parks and Recreation » Parks and Places » Mushroom Park Page ContentMushroom Park is a 1.54-acre neighborhood park located between Waltham and Saxon off of Scio Church Rd. The playground is nestled among berms, and among the berms are a few small concrete mushrooms. There is also a picnic table and benches. Click here to view a printable map of Mushroom Park (pdf)