Colorado River Origins and Evolution
Activity: ExploraTalk
Leader: Default Admin
Reconstructing the Origins of the Colorado River: A Talk with Becky Dorsey, Professor of Earth Scien…
Activities Calendar
Amazon Hdwtrs/Spencer Butte
Activity: Hike
Leader: Tom Rundle
This is our weekly aerobic hike starting at Martin Street Trailhead to Fox Hollow, and to the summit…
Springtime in the Country
Activity: Bus
Leader: Sharon Cutsforth
Springtime in the Willamette Valley is so beautiful, why not come along with Obsidians and guests on…
Heceta Head Geology
Activity: Hike
Leader: Tom Rundle
Trip Description: From Washburne Park we will walk south on the beach to the Hobbit Trail, and from …
Rescheduled Wild Iris Ridge
Activity: Hike
Leader: Chris Stockdale
This is our inaugural dog-friendly hike. It's relatively easy, mostly on gravel paths and old loggi…
New Zealand
Activity: Potluck & Presentation
Leader: Default Admin
New Zealand by Bike, Boots and Boat by Mike Wolf
With snow capped peaks, beautiful coastlines, tusso…
Malheur National Wildlife Refuge
Activity: Extended Trip
Leader: Marianne Camp
We will stay at Frenchglen, a small hamlet about 60 miles south of Burns. The focus of the trip is b…
Alder Creek Restoration
Activity: Work Party
Leader: Mark Hougardy
LOCATION: Alder Springs / Whychus Creek
IMPORTANT, READ THIS:
A. The departure time and location wi…
Horse Rock Geology
Activity: Hike
Leader: Tom Rundle
Trip Description: From the trail head we will hike through small pine stand into a meadow, then alon…
Tahkenitch Creek Exploratory
Activity: Hike
Leader: Tom Rundle
NEW Trip Description: We will see a variety of environments including dunes, inter-dune ponds, beach…
