Unveiling the Gorge Field Trip

The rock walls of the Columbia Gorge expose layer upon layer of similar appearing Columbia River Basalt. But exposed on those walls and within those layers are features that tell unusual stories of geologic events, cultural history and inspire imaginative tales to those who look with an inquisitive mind. On this field trip we’ll stop frequently to talk about many of those features and their stories, as we do a 50-mile bus loop through some of the most spectacular scenic vistas the Gorge has to offer. Maars, lahars, pillows, petroglyphs, even an exotic side trip, plus much more, will sharpen your vision and tickle your imagination.  The Gorge in May can be warm or cool, dry or wet, calm or windy, and this 6-7 hour tour will involve several roadside off/on the bus stops and two short walks on paved paths, so dress appropriately with comfortable walking shoes. Important Notes:  We’ll stop for lunch at a scenic overview picnic area. An optional box lunch may be ordered with your registration. The group size will be limited to ensure an engaging experience for all. If the available spaces fill up and there is sufficient waitlist interest, this field trip may be offered again on Sunday, May 4.

Vineyard/Winery Field Trip – Journey Through Terroir

The Columbia Gorge is a true “World of Wine in Forty Miles” and this field trip is your chance to experience it firsthand. Unlock the secrets of the Columbia Gorge Wine Region as we explore and sample this World of Wine on a Journey Through Terroir! The Columbia Gorge is a singular wine region where dramatic landscapes and diverse microclimates create an incredible variety of delicious wines. You’ll visit stunning vineyards and sample award-winning wines as you delve into the fascinating science behind winemaking. Discover how everything from volcanic soils to extreme rainfall gradients shapes the flavors in your glass, exploring how geology, climate, and even wind influence the grapes. Imagine: Tasting wines grown in volcanic soils, alongside those nurtured by ancient flood sediments. Experiencing the dramatic shift from lush, forested landscapes to dry high-desert conditions, all within a short drive. Sampling a wide range of varietals, from cool-climate classics to sun-loving grapes, all thriving in this unique region. Important Notes: There will be ample opportunities to sample and purchase wine along the way, and there will be a no-host lunch at one of the wineries. The group size will be limited to ensure an engaging experience for all. Register today to embark on a sensory adventure! If the available spaces fill up and there is sufficient waitlist interest this field trip may be offered again on Sunday, May 4.

Spring Wildflower Walk at Tom McCall Preserve on the Rowena Plateau

Don’t miss this chance to immerse yourself in the beauty of spring wildflowers in the Gorge! Rowena Plateau is located in the transition zone between the moist, heavily-forested west side of the Cascades and the drier bunch grass prairies of the east. The main parking circle at Rowena Crest is a fabulous place to enjoy the sweeping views of the Columbia River. Barbara Robinson, a renowned native plants expert will lead a Wildflower Walk along the Plateau Trail, which features fantastic views of the Columbia River Gorge and the Lyle Sandbar at the mouth of the Klickitat River across the Columbia. Spring may be the best time of year to walk this easy trail as it meanders atop Rowena Plateau across grasslands full of arrowleaf balsamroot, lupine, bachelor’s button, other spectacular wildflowers..  Rowena Gap to the east was a significant choke point along the path of the Ice Age Floods which overtopped this 700-foot-high cliff by about 200 feet above the parking circle. The trail crosses an enigmatic mound-and-swale topography shaped by ancient lava flows, catastrophic floods and volcanic ash deposits. Earthquake sorting, freezing and thawing, erosion, soil accumulations by plants and wildlife burrowing activities have all been suggested as having caused the mounds. The trail also encounters two kolk ponds, depressions in the basalt created by the churning action of the Ice Age Floods. The depressions harbor moisture, and are the most vegetated places atop this arid bluff. Scrub oak groves interspersed along the way provide some welcome shade and protection from the prevailing seasonal wind. Notice how the oaks are almost reduced to krummholz (trees stunted by wind) near the top of the trail from the incessant winds. You might also enjoy watching the “Wildflower Woman” tribute to Barbara Robinson. Important Notes: This area can be quite windy, so dress appropriately and hold onto your hat. Poison oak is one of the plants that thrive here. There is no potable water available. Please stay on marked trails. Dogs are not allowed. The group size will be limited to ensure an engaging experience for all. If there is sufficient waitlist interest the guided walk may be offered again on Sunday, May 4.