State troopers investigated a deadly crash between a semi and a motorcycle on Monument Hill early Tuesday morning.
A man and a woman riding a motorcycle were killed in a crash on Friday night.
A deadly crash on Highway 285 Saturday morning claimed the lives of three people and sent another to the hospital.
A motorcyclist was killed in a crash on Highway 85 in Brighton early Wednesday morning.
A motorcyclist was struck and killed early Monday morning on Interstate 25.
Jonathan Stanley was on his way to the airport when he came upon the scene of a wrong-way driver crashed into a pickup truck.
Colorado State Troopers said an 18-year-old driver was going the wrong way on Interstate 25 when she crashed head-on into a pickup and was killed.
Police say a distracted driver caused a deadly crash in Lakewood on Thursday evening.
Both drivers killed in a crash in Arvada late Friday night have been identified.
Police in Longmont are searching for more witnesses to a crash that killed a Colorado State Patrol trooper cadet dead and critically injured another trooper.