Ottawa County

County Seat: Miami, Oklahoma 74354

Ottawa County was named for the Ottawa Tribe of Oklahoma.


Entering Indian Territory
In 1833, this area ceded Quapaw tribe by U.S. Lands near granted Indians of 20 tribes including Seneca, Shawnee, Peoria, Miami, Ottawa, Wyandot. Wealth came to the Quapaw and to other Indians here from discovery of rich lead and zinc mines beginning 1905. Oklahoma Historical Society 164 - 1995.
Picher Mining Field
From 1917 to 1967 Picher Mining Field yielded 450 million tons of ore, 21 million tons of concentrate, 11 million tons of metal; from 1921 to 1946, it was known as the world's largest and richest lead and zinc field. Picher Mining Field and people who worked here produced key materials for Worl ...
Seneca Agency
The federal government established this agency in 1832 for the Seneca and remnants of seven other tribes who had been relocated in Indian Territory from Ohio.
Tri State Border MO KS OK
Tri-state markers at the meeting of the Kansas, Oklahoma, and Missouri borders. The original stone monument was built in 1938 by the Youth Work Administration. A new monument was placed in October 2004 and lies several feet east of the old monument.  
Wyandotte Tribe
The Wyandots moved from Kansas to the north side of the Seneca Reservation in Indian Territory in the 1850s but did not control their own affairs until passage of the Oklahoma Indian Welfare Act of 1936.