Colorado Revised Statutes Title 1. Elections § 1-7-304. Manner of voting in person

(1) Each eligible elector, upon receiving a ballot, shall immediately proceed unaccompanied to one of the voting booths provided. To cast a vote, the eligible elector shall clearly fill the oval, connect the arrow, or otherwise appropriately mark the name of the candidate or the names of the joint candidates of the elector's choice for each office to be filled. In the case of a ballot issue, the elector shall clearly fill the oval, connect the arrow, or otherwise appropriately mark the appropriate place opposite the answer that the elector desires to give.

(2) Each eligible elector who has completed the ballot and is ready to vote shall then leave the voting booth and approach the election judges having charge of the ballot box. The elector shall, in full view of the election judges, deposit it in the ballot box.