With your help, we’ve protected 24,439 acres of Bog for future generations!

Boardwalks & Trails

Below, find maps and information regarding trails on Friends of Sax-Zim Bog (FOSZB) properties. General locations of each property can be found on our birding map HERE. Each map includes basic information about the ease of the trail, when the trail is open, and the GPS coordinates for each trailhead.

There are three boardwalks on FOSZB Properties: Warren Woessner Bog Boardwalk (Warren Nelson Bog), Auggie’s Boardwalk (Fringed Gentian Bog), and the Bob Russell Memorial Bog Boardwalk (Winterberry Bog). Boardwalks are not handicap accessible during the winter, but are accessible for the snow-less season (April-October most years).

The trails on FOSZB Properties are rustic nature trails. Please stay on trails, unless directed otherwise. Our trails were created to minimize the disturbance to the bogs, while allowing for some access to these wonderful ecosystems. Some trails are open in the winter for snowshoeing and hiking.

For specific notes about the accessibility of our properties, check out the updates we have made on Birdability‘s website here: Birdability Map.

Wood Thrush Woods/George Lahr Trail & Blue Dasher Bog Trails are CLOSED IN WINTER FROM NOV 1 THROUGH APRIL 30 due to lack of parking and plowed roads.

**Trail Conditions vary from year to year and season to season! For questions about trail conditions or to report a downed tree/obstacle along a trail send an email to Head Naturalist Clinton at naturalist@saxzim.org.**


  • Please use caution as you travel and explore the Bog.
  • Be mindful of residents who live in the area as you park on the road.
  • Use good judgement as you enjoy the birds, animals, and plants around you. Visit our Birding Etiquette tips page.
  • Watch your footing at all times! Ditches can be very deep and hummocks in the Bog can be ankle-twisters.


Auggie’s Bogwalk at Fringed Gentian Bog (open year-round)

Warren Woessner Boardwalk at Warren Nelson Memorial Bog (open year-round)

Bob Russell Boardwalk at Winterberry Bog (open year-round)

John C. Gale Taiga Boardwalk at the Welcome Center (under construction!)


Fringed Gentian Bog Trail (open year-round)

Indian Pipe Bog Trail (open year-round)

Yellow-bellied Bog Trail (open year-round)

Welcome Center Trails (open year-round)

Summer Only Trails:

Blue Dasher Bog Trail (open May-Oct/closed Nov-April)

Botrychium Lane Trail at Warren Nelson Bog (open May-Oct/closed Nov-April)

Wood Thrush Woods Trail (open May-Oct/closed Nov-April)