The Mountains to Sound Greenway is seeking the help of volunteers to help kick-off this fall’s tree planting season in the Greenway by planting trees at Lake Sammamish State Park on Oct. 15.

The event is the start to plant more than 20,000 native trees and shrubs in several natural areas in the Greenway.

The event will take place from 9 a.m. to 3 p.m. and feature food, music and vendor booths for the whole family to enjoy, plus plenty of trees to plant. No experience is required.

Additional free family-friendly tree planting events are scheduled for Saturdays and Sundays in November and December.

Lake Sammamish is considered important for several species of salmon, many birds and a wide variety of amphibians, insects and other wildlife, and is an entrance point for salmon headed upstream to spawn. The area has been extremely degraded over time by invasive weeds and high levels of foot and boat traffic.

Registration is required and can be made by calling 206-812-0122 or at volunteer@mtsgreenway.org.