Answer:

OHIO

AnswerCrossword Clue
OHIOCrosby, Stills, Nash and Young hit
OHIOGlenn's state
OHIOHome of the Buckeyes
OHIOKentucky border river
OHIOMcKinley's birthplace
OHIOThe Buckeye State
OHIOWhere Columbus is
OHIOCairo's river
OHIOLima's locale
OHIOLouisville's river
OHIOMississippi tributary
OHIORiver to the Mississippi
OHIOColumbus' state
OHIOGreat Lakes state
OHIOHome state of seven presidents
OHIOMiami River locale
OHIOOberlin's state
OHIOPittsburgh river
OHIOWhere the Miami flows
OHIOBirthplace of seven Presidents
OHIORound on the outside, tall in the middle
OHIOThe ... Players
OHIOKentucky neighbor
OHIOState in which three professional sports teams have colors in their names
OHIOBirthplace of seven presidents
OHIOColumbus' home
OHIOAshtabula's state
OHIOHome of Miami University
OHIOWhere Miami University is
OHIOWhat's round at both ends and high in the middle?
OHIOBuckeye State
OHIOWheeling's county
OHIOIts three most populous cities start with C
OHIOUnion joiner of 1803
OHIOBuckeye's home
OHIOBuckeyes home
OHIOThe ladybug is its state insect
OHIOEuclid's home
OHIOEuclid's place
OHIOHome to Euclid