PR 274 begins in the
Rural Municipality of Dauphin at an intersection with
PTH 5/
PTH 10 (Parks Route) just west of the city of
Dauphin, heading south as a paved two-lane highway through the locality of
Spruce Creek and crossing a couple of small creeks before coming to an intersection between Road 117W and Road 138N, where the pavement ends and the highway makes a sharp right. Now heading due west as a gravel road, PR 274 travels due west through rural farmland for several kilometres to pass through the community of
Keld before entering the
Rural Municipality of Gilbert Plains. It continues west through rural areas for several more kilometres, travelling only north of the
Riding Mountain National Park boundary, before making a sharp right turn onto Road 129W, where the pavement resumes. The highway crosses the
Wilson River before entering the town of
Gilbert Plains as it passes by the
Gilbert Plains Airport. Travelling through town along Cutforth Street, PR 274 travels through neighbourhoods as it crosses both PTH 5 and a railroad along the eastern side of downtown. Leaving town and crossing the
Valley River, the highway heads due north through farmland for the next several kilometres, going through a switchback just prior to passing through
Venlaw, where it crosses the
Drifting River. Entering the
Municipality of Ethelbert at its junction with
PR 267, PR 274 travels through the hamlet of
Mink Creek, crossing the creek of the same name, prior to crossing the
Fishing River, going through a switchback, and then making a sharp right. It now curves back left before crossing a creek and making another sharp right, entering the town of
Ethelbert and coming to an end shortly thereafter at an intersection with PTH 10; the road continues into downtown as Main Street (
PTH 10A). ==Major intersections==