Location: Pennsylvania

Tree planting in Lykens

One of the best actions you can do to improve the health of the Bay is to plant trees. Come help us plant 475 trees in Lykens, PA to help our watershed!

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Volunteer opportunity.

Tree planting in Oxford

One of the best actions you can do to improve the health of the Bay is to plant trees. Come help us plant 175 trees in Oxford, PA to help our watershed!

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Volunteer opportunity.

Tree planting in Elizabethtown

One of the best actions you can do to improve the health of the Bay is to plant trees. Come help us plant 200 trees in Elizabethtown, PA to help our watershed!

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Volunteer opportunity.

Tree planting in Christiana

One of the best actions you can do to improve the health of the Bay is to plant trees. Come help us plant 350 trees in Christiana, PA to help our watershed!

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Tree planting in Mountville

One of the best actions you can do to improve the health of the Bay is to plant trees. Come help us plant 600 trees in Mountville, PA to help our watershed!

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Volunteer opportunity.

Tree planting in New Holland

One of the best actions you can do to improve the health of the Bay is to plant trees. Come help us plant 250+ trees in New Holland, PA to help our watershed!

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Volunteer opportunity.

Tree Planting in Lewisberry

One of the best actions you can do to improve the health of the Bay is to plant trees. Come help us plant 400 trees in Lewisberry, PA to help our watershed!

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cows grazing in a field

Lancaster, PA Farm Helps Clean Pequea Creek

For the past four years, the Alliance’s Agriculture team worked with an organic dairy farm in Lancaster County, PA, and last year, this nutrient reduction project was completed! Mr. Abner Stotlzfus, a Plain Sect farmer, operates a 40-cow organic dairy, supplying high-quality milk to Organic Valley.

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Fall 2025 Project Clean Stream Kick-Off: Pennsylvania

Join us in September for Pennsylvania’s Project Clean Stream Fall Kickoff!

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A person speaks to a group of people while leading them down a sidewalk

Wandering Pennsylvania’s Waterways: Collaborating Across Communities

Protecting Pennsylvania’s natural resources requires more than good policy – it demands a web of partnerships, a blend of innovation and tradition, and a deep respect for both the land and the people who steward it.

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