Overview

• Location: Josephine County, Southern Oregon (BLM Medford-Grants Pass Field Office, near Selma)

• Waterfall Type: Plunge

• Height: ~30 feet (9 m)

• Trail Distance: ~3–5 miles round-trip via difficult trail

• Difficulty: Difficult

• Best Time to Visit: Spring through early summer

History & Background

Kelsey Falls is a remote 30-foot plunge waterfall in Josephine County managed by the Bureau of Land Management’s Medford-Grants Pass Field Office, near the community of Selma in the Illinois River Valley. The Illinois River Valley is one of Oregon’s most botanically extraordinary regions — the serpentine and ultramafic soils of the Klamath-Siskiyou region support hundreds of rare plant species found nowhere else on Earth, and the valley has been recognized as a global biodiversity hotspot. Kelsey Falls flows in a tributary of the Illinois River drainage, set within the rugged Siskiyou Mountains landscape that also encompasses the Kalmiopsis Wilderness, one of Oregon’s most remote federal wilderness areas. The falls are known primarily to dedicated hikers exploring the quieter corners of this remarkable landscape.

Geology

Kelsey Falls plunges over ancient ultramafic and metamorphic rocks of the Klamath Mountains at approximately 2,100 feet elevation. The Klamath-Siskiyou region contains some of the oldest geological terranes in Oregon — ancient oceanic crust, serpentinite, and metamorphic rocks formed hundreds of millions of years ago. The unusual chemistry of serpentine soils derived from these rocks creates the distinctive plant communities that make the Illinois Valley so biologically significant. The creek feeding Kelsey Falls flows through this remarkable geological landscape, maintaining cold, clear water in a canyon of ancient rock.

Directions & Access

• Nearest City: Selma, OR; Cave Junction, OR (~10 miles north)

• Trail Information:

  • Access via BLM trails in the Medford-Grants Pass Field Office lands near Selma; the route traverses Klamath-Siskiyou terrain through mixed conifer and oak woodland

  • Trail is not heavily maintained; the Difficult rating reflects terrain and route-finding challenges; the botanical richness of the surrounding landscape is exceptional — rare plants, unique geology

• Parking:

  • Limited BLM road parking near the trailhead; no formal facilities

• Accessibility:

  • Not wheelchair accessible; difficult trail in rugged terrain

Best Time to Visit

• Spring: Best flows; Klamath-Siskiyou wildflowers bloom spectacularly in April–May; one of the richest wildflower displays in North America

• Summer: Flows decrease quickly in the dry Siskiyou summer; hot temperatures at lower elevations; carry water

• Fall: Low flows; the landscape is dry and golden; quiet season

• Winter: Some flows return with rain; mild Josephine County winters; road access generally maintained

Nearby Attractions

• Selma, Oregon

• Illinois River Valley (botanical richness)

• Oregon Caves National Monument (~25 miles southeast)

• Kalmiopsis Wilderness (~20 miles west)

• Cave Junction

References

• Links:

  • BLM – Medford District

  • Travel Oregon – Southern Oregon

• Books:

  • Oregon Waterfalls by Greg Plumb

  • Waterfall Lover's Guide: Pacific Northwest