Wyo. Const. art. 20, § 3: Constitutional convention.

Whenever two-thirds of the members elected to each branch of the legislature shall deem it necessary to call a convention to revise or amend this constitution, they shall recommend to the electors to vote at the next general election for or against a convention, and if a majority of all the electors voting at such election shall have voted for a convention, the legislature shall at the next session provide by law for calling the same; and such convention shall consist of a number of members, not less than double that of the most numerous branch of the legislature.