The Colorado State Seat Temporary Location, Amendment Q was on the November 2, 2010 statewide ballot in Colorado as an legislatively-referred constitutional amendment where it was approved 57% to 43%. The proposal calls for establishing a process for moving the state seat to a temporary location during a declared disaster emergency.
This was the wording of the ballot:
Shall there be an amendment to Section 3 of Article VIII of the Constitution of the State of Colorado, concerning a process for temporarily moving the seat of Colorado, concerning a process for temporarily moving the seat of government in a disaster emergency that substantially affects the ability of the state government to operate in the city and county of Denver, and, in connection therewith, requiring the General Assembly to convene in a temporary meeting location designated by the governor and authorizing the General Assembly to determine by law a temporary location for the seat of government of the state? [link to ballotpedia.org]
I wonder if this proposal was on any other state ballot?