Denver police busted an illegal marijuana operation and seized more than 70 pounds of pot as part of an undercover operation on Thursday and Friday.
Iowa authorities seized nearly nine pounds of marijuana during a traffic stop near Dubuque this weekend.
A big marijuana bust on a highway in Oklahoma this week involved marijuana products purchased in Colorado.
Authorities have arrested two people after a search of a home in the southeastern Colorado town of Haswell turned up about 1,200 marijuana plants.
A man and woman from Denver have been accused of trying to smuggle marijuana over the U.S.-Mexico border in separate incidents.
Investigators recently found 55 pounds of marijuana after searching a small plane in Boulder.
Authorities say a Colorado man is facing a felony charge after about 68 pounds of dried marijuana were found in his car during a traffic stop in southeast Wyoming.