Past Activity

PNW Forest Biodiversity w/ Adventure Scientists – STEWARDSHIP Explora trip

  • Start date: 09/21/2026

  • Start time: 7:00 AM

  • End date: 09/21/2026

  • End time: 7:00 PM

Description:

Adventure Scientists is collaborating with the USFS research lab in Corvallis to gather acoustic data in old growth forests in the Cascades of Oregon, Washington, and California. large-scale project that includes the Willamette, Umpqua, Deschutes, Fremont-Winema, and Rogue River-Siskiyou National Forests, all within range of Eugene. The acoustic data will be used to understand distribution of 40 species within the PNW old growth areas in order to update conservation efforts and modify the forest management plans accordingly. The first year of the project is wrapping up and there are many acoustic recording units (ARU) that need to be retrieved by the end of September. Currently there are 8 areas in easy reach of Eugene that need to have the ARU retrieved. Darko and I have completed the volunteer training and other requirements and are now ready to head out to one of the areas (a 'hex' shaped area) and retrieve the 4 ARU in it.

For this trip we will travel to the southwest flank of Substitution Point in the 3 Sisters Wilderness. This area is accessed by the Foley Ridge trail (about 3.5-4 miles, about 1500' eleven gain) then off-trail through a large burn area that likely will feature a fair amount of climbing over, going under, and around down trees.

Please sign and help us with this project. There is a lot of potential for collaboration on large-scale science projects through the Adventure Scientists organization. Optimally, all participants on this trip will be volunteers for Adventure Scientists, but the process of joining takes a couple of days and time is very short to get through the process. You can still come with us and help, but will not have access to any of the data required to find the ARU. A link to the project page with the option to join is below:
https://www.adventurescientists.org/pacific-northwest-forest-biodiversity.html?utm_source=website&utm_medium=projects-page&utm_campaign=circle

More info will be sent to participants in the next few days (weather will be beautiful!).

Photo by: Darko Sojak

  • Event Leader: Steve Davis

  • Event Leader Phone: 832-527-1756

  • Event Leader Email: lunaripple1@gmail.com

  • Assistant Leader: Darko Sojak

  • Event category: Stewardship

  • Area Type: Mountain

  • Departure Location: Amazon Park, 28th & Hilyard entrance parking lot

  • Rating: Moderate

  • Roundtrip total drive miles:

  • Season: 2026

  • Permits Required:

  • Event Status: Passed

  • Supplies and Equipment Required: Boots, clothes for mountain weather, Ten essentials, food and hydration for long day.

  • participant prerequisites: Must willing and capable of off trail travel including loose, rocky footing, bushwhacking, and climbing over, under and around fallen trees.

  • Conditions:

  • Total Distance: 11

  • Member Fees: —

  • Elevation Gain: 1900

  • Non-Member Fees: —

  • Committee: Stewardship

  • Junior member fees: —

Trip Report

Two Obsidians Adventure Scientists volunteers, Darko and Steve, enjoyed a day of retrieving acoustic recording units (ARU) from an area on the flanks of Substitute Point in the 3 Sisters Wilderness. The ARU are part of the PNW Forest Biodiversity research project being run by the USFS with help from Adventure Scientist volunteers. The area we worked in is part of the big burn on the west side of the 3 Sisters, so our off-trail travel was spent climbing over, through and around down dead trees. Despite this, our enthusiasm for contributing to the research kept us moving jauntily (really?) through the tangle for more than 5 hours of navigating with GPS to the various ARU. Needless to say, both of us were happy to finish up in the tangle and find the Foley Ridge trail for a pleasant walk out with Darko snagging a few tasty morsels (Chanterelles and Boletus) along the way.

The October Bulletin is online now.

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