Gateway Park Arboretum encompasses 7.5 acres of trees, shrubs, and perennial gardens. It is nestled within Gateway Park and Preserve, a 131-acre property owned by Iowa County Conservation. Gateway Park Arboretum was created in 2004 with a grant that was used to purchase 70 trees. A collection of conifers was donated and planted that same year. Today there are 36 different species of identified trees and shrubs including 10 species of oaks and 12 species of conifers. A walking trail runs through the arboretum and continues around a 41-acre lake that is part of Gateway Park and Preserve. A meditation garden provides space for trail walkers to pause and rest or reflect. Guided tree walks and educational activities are organized by Iowa County Master Gardeners and Iowa County Conservation Naturalists.