Classified for credit

Public observatory in Oregon City with public viewing nights — telescope mechanics, observational astronomy, and celestial mapping.

Preserved cannery on the Columbia River documenting the Pacific Northwest salmon canning industry — covers industrial history and fisheries technology.

Remote federal antelope refuge in the Oregon high desert with a staffed visitor center — covers pronghorn biology, sagebrush ecosystem ecology, and wildlife refuge management.

Active 1894 lighthouse on the Oregon coast — maritime history, Fresnel lens optics, and coastal navigation.

Regional heritage museum in Astoria covering the history of the Columbia River maritime trade and early Oregon settlement.

Pendleton heritage museum covering the Oregon Trail, railroad era, and the ranching history of the Umatilla region.

Native-plant nature center with trails near Corvallis — covers Pacific Northwest ecology, plant identification, and habitat biology.

Native rhododendron garden along the Umpqua River — supports botanical study of Pacific Northwest native shrubs, plant taxonomy, and riparian ecology.

Antique hand-carved carousel still in operation with a dedicated museum — covers American craft history, mechanical arts, and carousel design.

Oregon City heritage district at the terminus of the Oregon Trail — covers westward migration, pioneer settlement, and Oregon's early territorial and statehood history.

City arboretum with 12,000+ labeled specimens from around the world — supports dendrology, plant taxonomy, and temperate forest ecology.

Late 19th-century pioneer homestead at Cape Blanco State Park — covers Oregon Coast settlement history, Victorian domestic life, and the Hughes family's ranching legacy.

Oregon Coast state park with forested trails and coastal geology — supports ecology, landform geography, and outdoor PE curriculum.

Managed wetland preserve with trails and an education center — covers riparian ecology, migratory birds, and wetland hydrology.

Museum documenting Japanese American history in Oregon including WWII incarceration — primary-source civil rights and 20th-century US history content.

Traditional Japanese garden in Ashland — covers landscape design, Japanese horticultural traditions, and plant ecology.

ODFW wildlife area headquarters known for Roosevelt elk viewing — large-mammal wildlife management, Coast Range ecology, and conservation biology.

University of Oregon art museum with diverse collections spanning Asian, American, and European art — supports formal art history and visual-arts curriculum.

University art museum at Portland State with rotating exhibits spanning multiple periods and media — supports art history and visual analysis.

Preserved 1880s Chinese-American trading post — primary-source site for immigration history, frontier commerce, and cultural studies.

Oregon Trail interpretive site at Keeney Pass — covers pioneer overland migration history and 19th-century westward expansion geography.

Research-based bird observatory in the Klamath-Siskiyou region — covers avian ecology, banding techniques, and migratory bird monitoring.

High-desert marsh refuge in the Klamath Basin — wetland ecology, migratory waterfowl, and Pacific Flyway biology.

NWR visitor center for a high-elevation marsh refuge — migratory bird ecology, wetland biology, and Pacific Flyway conservation programs.