Colorado is now one of two states in the nation that has a legalized marijuana law.
Amendment 64 led late Tuesday night with 53.3 percent voting yes and 46.7 percent voting no, with 1,863,535 votes or about 66 percent of active voters counted.
The Denver Post projected the amendment would pass.
In Montezuma County, voters said no way, voting against the amendment 6,127 to 5,882.
The county commissioners passed a resolution opposing it and Sheriff Dennis Spruell had vehemently voiced his opposition against the amendment leading up to the election.