Speed trap closer to Boulder, just about where Greenbriar intersects 93 from the west. Just after one gets used to the reduced speed (from 55 to 50), within less than 1/2 mile, the speed is further reduced to 40, then within another 1/2 miles, to 35. Some police are present at the reduction from 40 to 35 (usually in gas station parking lot or nearby). Even if no police are present, there is a camera mounted on top of the reduced speed limit sign (where is says 40). So police or no, if you are going too fast, you get tickets in the mail.