Celebrate Earth Day with our Native American neighbors on Saturday, April 20, starting at 2 p.m. What does this modern event share with the ancient observances? Ask Chief Roland Jerome and other members of UNACC (United Native American Cultural Center, Inc. in Devens).

Bolton Local will have displays about sustainability. Naturalists will be on hand to give guided tours of the refuge at 1 and 3 p.m.

Park in the main parking lot of the Oxbow Nat'l Wildlife Refuge at the end of Still River Depot Road in Harvard and follow the signs.Bring a chair/stool to sit on or a warm blanket. Call Rona at 978-779-2259 or email ada@FriendsoftheOxbowNWR.org to inform us of your intent to participate in this event. Children are welcome to this free program.