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	April 2026
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			1 View 2 More	2 View 2 More	3 View 2 More	4 Gallagher Hill Work Party! Mercer Island Parks and Rec 10am-1pm Celebrate Earth Month through Volunteering in your Local Park! Gallagher Hill Open Space is a beautiful park with old trees, a thriving stream, and plenty of native plant and animal life. A lot of the park is unfortunately be... Gallagher Hill W... Gallagher Hill Work Party! View 2 More
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12 View 2 More	13 View 2 More	14 Stormwater Stewardship Volunteer Event Mercer Island Parks and Rec 1-3 pm 10 The City of Mercer Island’s Stormwater and Natural Resources’ departments are starting a new program to improve and beautify ditches around city parks. Ditches are important features because they help transport water away from roadways and mitiga... Stormwater Stewa... Stormwater Stewardship Volunteer Event View 2 More	15 View 2 More	16 View 2 More	17 View 2 More	18 View 2 More
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April 2026