Crews recently built boardwalks on the Ice Age Trail at the headwaters of the Trade and Straight Rivers.
Nature hikes are part of valley-wide reading program happening during April.
Volcanic, sedimentary and glacial formations will be discussed during upcoming outings.
Free guided hikes will explore trails along the river with National Park Service rangers.
Hudson bookstore will host signing and discussion of book about trails on April 12.
Hikers on the Winter Walk saw historic sites and heard about restoring native habitat.
Enjoy early autumn by exploring trails along the river on a guided walk.