Field Tour of the Tarboo Watershed with Northwest Watershed Institute

Great Blue Heron

Join the Natural History Society on Tuesday, August 20, for an all-day tour of the Tarboo Watershed with Peter Bahls, biologist and Director of Northwest Watershed Institute. The Institute and many project partners have been implementing one of the largest landscape-scale conservation projects in Puget Sound.

We will explore from the headwaters of Tarboo Creek to spectacular Dabob Bay, stopping to take short walks to see a diversity of wildlife, stream, forest, and shoreline habitats, and a full spectrum of land protection and restoration projects.

Thuja plicata (Western Redcedar)

RSVP to Janell at for meeting time and place, what to bring, and additional information.

August 2019 Book Selection

The Jefferson Land Trust Natural History Society book club will meet on Monday, August 26, 2019, 3:30 – 5:00, to discuss Mountain in the Clouds by Bruce Brown.  Let’s gather at 3:15 at the lot across from San Juan Taqueria; from there we can carpool to Ilahee Preserve.

Called “profound and moving” by the Washington Post, this environmental classic launched the wild salmon movement and inspired the removal of the dams on the Elwha River, the largest dam removal project in human history. The book centers on the rivers of the Olympic Peninsula, and although written in the 1980s, is as timely as when it was first written. A new preface was included in the 1995 publication.

If you’ve ever wondered “where did all the wild salmon go?” then this is a must-read for you.

Flower Families of Mt. Ellinor

Eriophyllum lanatum (Oregon Sunshine)

Join the Natural History Society on Wednesday, July 17, for a summer hike up rocky Mt. Ellinor. We are fortunate that botanist Coca Sanchez will lead us on her annual wildflower walk for the Natural History Society. This time she will take us up a steep mountain to seek endemic wildflowers. Coca will discuss some of our most common flower families, pointing out any blooming species.


Chamaenerion angustifolium (Fireweed), Eriophyllum lanatum (Oregon Sunshine), Achillea millefolium (Yarrow)

Mt. Ellinor is known for its wildflower meadows and spectacular views from rocky ridges. We will hike from the upper trailhead to the summit, hoping to see views of Lake Cushman and the surrounding Olympic peaks.

RSVP to Eileen at for meeting time and place, what to bring, and additional information.

July 2019 Book Selection

The Jefferson Land Trust Natural History Society Book Club will meet on Monday, July 22, 2019, 3:30 – 5:00, to discuss The Soul of an Octopus by Sy Montgomery.  We will meet at the shelter at Ilahee Preserve, gathering at the parking lot near San Juan Taqueria at 3:15 to carpool to the limited parking at Ilahee.

Sy Montgomery explores the emotional and physical world of the octopus and the remarkable connections they make with humans. Scientists are now establishing the intelligence of the octopus, watching them solve problems and deciphering the meaning of their color-changing camouflage techniques. Montgomery chronicles this growing appreciation of the octopus. and  reveals what octopuses can teach us about consciousness and the meeting of two very different minds.

Insects at the Illahee

Insects at the Illahee

Paddle-tailed Darner (Aeshna palmata)

Join the Natural History Society on Saturday, June 15, for a summer afternoon exploring insects at the Land Trust’s Illahee Preserve. Entomologist Richard Lewis will lead us on a short hike to look in open space, clearings, forest edges, the forest, and aquatic environments.

Tribe Chironomini
A member of Non-biting Midges Family Chironomidae

Richard will tell us about insects and their role in the natural world. He will discuss different types of insects we find here and their life histories and roles in nature. Richard will introduce a variety of sampling techniques including sweep nets, aerial nets, aquatic nets, traps, and beat trays. In each area we will also look for and discuss evidence of insects such as feeding damage, nests, tracks, and prey.

Harpaphe haydeniana (Yellow-spotted millipede)

RSVP to Nan at for meeting time and place, what to bring, and additional information.