SHADOW Lake Nature Preserve


SHADOW offers community classes & events, taught by local environmentalists, Friday morning nature walks, Wilderness Adventure Field Trips, summer programs, and Wild Walks for non-school groups of all ages.


Protection of natural lands not only retains habitat for Washington’s native plants and wildlife, but also offers human benefits through ecological services like carbon storage, groundwater recharge, flood and drought mitigation, and storm-water filtration. 

SHADOW Lake Nature Preserve is committed to preserving and protecting vulnerable ecosystems in a rapidly urbanizing corner of King County.


SHADOW Lake Nature Preserve’s Restoration & Stewardship Programs help maintain and restore vulnerable habitat and ecosystems at the Nature Preserve that support native flora and fauna while providing educational stewardship opportunities to our community.

Come explore SHADOW’s unique ecosystems, today!

A comparison of the recruitment success of introduced and native species under natural conditions

We tend to think that native species have no chance at survival if nonnative species are introduced to an area. Because introduced species often create an imbalance of nutrients and competition, they can create a monoculture and takeover land, but is this always true? In this study, scientists compiled species survival data. They compared seed to seedling survival, early seedling survival, and survival to adulthood under nature...

In artificial roost comparison, bats show preference for rocket box style

Although we aim to improve and expand habitat for wildlife, sometime creating artificial habitats is necessary to support populations and to understand microhabitat preferences. In this study, three artificial roosts were constructed: bat box, rocket box, and bark mimic. A bat box looks more like a traditional birdhouse whereas a rocket box has two chambers; both style boxes were constructed with untreated and planed pinewood....

Native of the Month: Bats

Bats, order Chiroptera, are the second most diverse order of mammals on the planet, outnumbered only by rodents. Bats occur worldwide, except Antarctica, and they display an astonishing range in size. The largest species is the giant golden-crowned flying fox, native to the Philippines, with a wingspan of over five feet (1.5 m) and weighing up to 2.4 lbs (1 kg). At the other end of the range is the tiny Kitti’s hog-nosed bat,...

Biophilia, Biophobia, & Chiroptera, oh my!

In 1984, renowned naturalist and Harvard professor, E. O. Wilson published Biophilia, a book in which he laid out his hypothesis that humans have a deep biological need to connect with the natural world. Wilson didn’t coin the term biophilia -- literally translated to “the love of living things” -- and the basic concept that humans benefit from an association with nature has been around for millennia. However, the prominence of...

Native of the Month: Spiders

Some may cringe or feel repulsed at the thought or sight of spiders, but honestly once you realize their environmental significance, you can’t help but appreciate these 8-legged beauties. SHADOW Lake Nature Preserve hosts a diverse and species rich spider community. One family of arachnids that have a worldwide distribution, the Linyphiids, are found here and are one the most species rich families. At SHADOW we have 10 species...

Getting to SHADOW

Tuesday – Saturday: 9AM–6PM

Closed on Sunday & Monday

Location: 21656 184th Ave SE, Renton, WA 98058

Tel: (425) 432-4914