Land area

Reservation of the Confederated Tribes of middle Oregon in Oregon (area 370)

Shape traced from the 1899 maps; approximate. Open on the map

1855
Set aside as a reservation
By Treaty with the Tribes of Middle Oregon (Warm Springs), 1855
1894
Earlier terms confirmed
The 1899 record: “Declares the northern boundary of the Warm Springs reservation to be that part of the line run and surveyed by T. B. Handley, in the year 1871”

In the record

Kept by the Confederated Tribes of Middle Oregon as the Warm Springs reserve in the 1855 treaty; an 1894 executive order only fixed its northern boundary. Never ceded. The area covers about 630 thousand acres in what is now Oregon.

The 1899 record names Confederated Tribes of Middle Oregon as the people of this land.

This area was not ceded. The 1899 record shows it as a reservation the nation kept, at least until the record ends in 1894.

Today, Confederated Tribes of the Warm Springs Reservation of Oregon carries the history of the people named here.

Written from the records linked here; open any of them for its sources.

See this cession on the map

Shapes come from C. C. Royce’s 1899 maps as georeferenced by the US Forest Service. They are approximate and are not legal descriptions of land. Royce recorded land the United States treated as ceded; the shape does not show a nation’s territory.

Who is doing the work

Land return and Native-led work nearby

Confederated Tribes of Siletz Indians Nation government Rocky Shores parcel near Yachats (about 7 acres, purchase pending as of Oct 2026)
Indigenous Land Relationship Fund (Oregon Land Justice Project / Coalition of Oregon Land Trusts), allied host Native-led Funds Indigenous-led projects to reclaim and reconnect to land and First Foods in Oregon Give on their site Website
Na'ah Illahee Fund Native-led Indigenous-led regranting for Land Back (building on E'lip Tilikum Land Conservancy), land and water protection,… Give on their site Website
Potlatch Fund Native-led Native philanthropy and grantmaking to Native individuals and Native-led organizations Give on their site Website

Native legal and land defense, nationally

Native American Rights Fund (NARF) Native-led Litigation and legal advocacy for tribal sovereignty, treaty rights, land and resources Give on their site Website
NDN Collective (LANDBACK Campaign) Native-led LANDBACK campaign (launched 2020; Mount Rushmore closure and return of Black Hills public lands), Indigenous… Give on their site Website
Indian Land Tenure Foundation (ILTF) Native-led Land recovery and control by tribes and individual Indian landowners Website
Decolonizing Wealth Project (Indigenous Earth Fund; California Tribal Land Return) Native-led Reparative philanthropy Give on their site Website

Gifts go straight to each organization; this atlas takes nothing. Listing is not endorsement: how organizations are listed.

Connections

Links marked “suggested” were matched automatically by name or date and have not yet been reviewed by a person.

Sources

Royce, Indian Land Cessions (1899), Schedule entry dated 1855-06-25primary record
Kappler, Indian Affairs: Laws and Treaties, text for 1855-06-25primary record
Royce, Indian Land Cessions (1899), Schedule entry dated 1894-06-06primary record
Royce’s map sheet: Oregon 1 (Library of Congress)primary record
USDA Forest Service, Tribal Lands Ceded to the United States (digitized Royce maps)reference work

The record’s fields

Area number in the 1899 record: 370
Dates in the 1899 record: 1855-06-25; 1894-06-06
Kind of instrument: Treaty or agreement
Peoples as named in the 1899 record: Confederated Tribes of middle Oregon
States: OR
Counties: Jefferson; Wasco
Map sheets in the 1899 record: Oregon 1
Geometry: Approximate shape from Royce’s 1899 maps

Research notes

geometry_role is 'cession' for every USFS feature: no field in the source distinguishes cessions from reservations.

Kind: Land area
Confidence: Medium

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