Under supervision, perform manual labor necessary to develop, maintain, and/or protect city-owned, open space property. Tasks may include but not be limited to such activities as; recreation trail construction and maintenance; recreation trailhead facility maintenance and construction, forest thinning and hazard tree removal; fence construction and maintenance; combating insect, pests, and diseases harmful to trees; constructing erosion and water control structures; restoring vegetation through scarification and seed distribution; equipment repair and maintenance; supply procurement; and biological data collection.