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We strive for clean streams and rivers flowing through resilient landscapes, cared for by the people who live, work, and play in the Chesapeake Bay watershed.
Trees planted along local streams and rivers
Worth of stormwater management practices installed
Farms in the Chesapeake Bay watershed supported
Community scientists learned how to monitor water quality
February 28, 2026
Nursery help wanted! Multiple dates and times available. Read More >
March 5, 2026
Learn about live stakes at the Horn Farm Center in this hands-on workshop! Read More >
March 28, 2026
Help make a splash towards clean water and healthy communities by planting trees with the Alliance during Treelay! Read More >
Join the Treelay, a watershed-wide hands-on volunteer day, and help plant 385 trees at this Pennsylvania site! Read More >
Join the Treelay, a watershed-wide hands-on volunteer day, and help plant 25 trees at this Maryland site! Read More >
Join the Treelay, a watershed-wide hands-on volunteer day, and help plant 20 trees at this Maryland site! Read More >
Join the Treelay, a watershed-wide hands-on volunteer day, and help plant 600 trees at this Pennsylvania site! Read More >
Join the Treelay, a watershed-wide hands-on volunteer day, and help plant 100 trees and 700 live stakes at this Pennsylvania site! Read More >
Join the Treelay, a watershed-wide hands-on volunteer day, and help plant 15+ trees at this Virginia site! Read More >
Join the Treelay, a watershed-wide hands-on volunteer day, and help plant 200 trees at this Pennsylvania site! Read More >
Join the Treelay, a watershed-wide hands-on volunteer day, and help plant 15 trees at this Maryland site! Read More >
April 1, 2026
Save the date for the 2026 Wild & Scenic Film Festival in MD! Read More >
April 4, 2026
One of the best actions you can do to improve the health of the Bay is to plant trees. Come help us plant 300+ trees in Littlestown, PA to help our watershed! Read More >
April 8, 2026
Save the date for the 2026 Wild & Scenic Film Festival in DC! Read More >
April 11, 2026
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 Hanover, PA to help our watershed! Read More >
One of the best actions you can do to improve the health of the Bay is to plant trees. Come help us plant 10 large stock trees in Marietta, PA to help our watershed! Read More >
April 14, 2026
Save the date for the 2026 Wild & Scenic Film Festival in PA! Read More >
April 18, 2026
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 Millersville, PA to help our watershed! Read More >
April 25, 2026
One of the best actions you can do to improve the health of the Bay is to plant trees. Come help us plant 500+ trees in Boalsburg, PA to help our watershed! Read More >
Nursery help wanted! Multiple dates and times available.
Learn More
Learn about live stakes at the Horn Farm Center in this hands-on workshop!
Help make a splash towards clean water and healthy communities by planting trees with the Alliance during Treelay!
Join the Treelay, a watershed-wide hands-on volunteer day, and help plant 385 trees at this Pennsylvania site!
Join the Treelay, a watershed-wide hands-on volunteer day, and help plant 25 trees at this Maryland site!
Join the Treelay, a watershed-wide hands-on volunteer day, and help plant 20 trees at this Maryland site!
Join the Treelay, a watershed-wide hands-on volunteer day, and help plant 600 trees at this Pennsylvania site!
Join the Treelay, a watershed-wide hands-on volunteer day, and help plant 100 trees and 700 live stakes at this Pennsylvania site!
Join the Treelay, a watershed-wide hands-on volunteer day, and help plant 15+ trees at this Virginia site!
Join the Treelay, a watershed-wide hands-on volunteer day, and help plant 200 trees at this Pennsylvania site!
Join the Treelay, a watershed-wide hands-on volunteer day, and help plant 15 trees at this Maryland site!
Save the date for the 2026 Wild & Scenic Film Festival in MD!
One of the best actions you can do to improve the health of the Bay is to plant trees. Come help us plant 300+ trees in Littlestown, PA to help our watershed!
Save the date for the 2026 Wild & Scenic Film Festival in DC!
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 Hanover, PA to help our watershed!
One of the best actions you can do to improve the health of the Bay is to plant trees. Come help us plant 10 large stock trees in Marietta, PA to help our watershed!
Save the date for the 2026 Wild & Scenic Film Festival in PA!
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 Millersville, PA to help our watershed!
One of the best actions you can do to improve the health of the Bay is to plant trees. Come help us plant 500+ trees in Boalsburg, PA to help our watershed!
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The Alliance brings together communities, companies, and conservationists to improve our lands and waters.
For our forests. For our streams. For our future.
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