MD 194 begins at an intersection with MD 26 (Liberty Road) in Ceresville. The roadway continues south as MD 26, which crosses the
Monocacy River on its way toward Frederick. MD 26 heads east from the intersection as a two-lane undivided road toward
Libertytown. MD 194 heads north as Woodsboro Pike, which starts as a four-lane
divided highway but reduces to a two-lane undivided road as the highway passes through the suburban communities of
Discovery and Spring Garden, where the state highway passes the historic
Woodsboro and Frederick Turnpike Company Tollhouse. While passing east of
Walkersville High School, the state highway enters the town of Walkersville and the highway's old alignment, Frederick Street, splits to the north. MD 194 collects the other end of Frederick Street and passes between residential subdivisions before leaving the town at the highway's intersection with Devilbiss Bridge Road and Daysville Road. The former road heads west toward the historic
Harris Farm; the latter highway leads to the 19th century
Crum Road Bridge. MD 194 parallels the
Maryland Midland Railway's north–south line, Israel Creek, and Laurel Hill north to Woodsboro. At the south end of the town, Main Street, which is unsigned
MD 194A, continues straight north while MD 194 veers northeast to bypass the town. A
park and ride lot is located at this intersection. The state highway starts to
run concurrently with
MD 550 at Woodsboro Road, which heads east as MD 550 toward Libertytown. On the north side of town, MD 550 heads west as Woodsboro Creagerstown Road, which meets the northern end of Main Street before heading northwest toward
Creagerstown and
Thurmont. MD 194 veers northeast and has a grade crossing with the railroad track at
New Midway, where the highway intersects Legore Road, which leads to the
LeGore Bridge. The state highway passes through the village of
Ladiesburg before crossing Little Pipe Creek, one of the tributaries of
Double Pipe Creek, into Carroll County. MD 194 continues as Francis Scott Key Highway through Keymar, where the north–south and east–west lines of the Maryland Midland Railway intersect. The state highway has a grade crossing of the east–west rail line and intersects the eastern terminus of
MD 77 (Middleburg Road). In the hamlet of Bruceville, MD 194 crosses Big Pipe Creek and intersects Keysville Bruceville Road, which heads northwest toward the village of
Keysville and
Terra Rubra, the birthplace of
Francis Scott Key. The state highway passes the historic
Winemiller Family Farm and
Keefer-Brubaker Farm on its way to Taneytown. MD 194, which becomes Frederick Street, crosses a branch of Piney Creek and passes the
Ludwick Rudisel Tannery House. In the center of the
Taneytown Historic District, the state highway intersects
MD 140 (Baltimore Street), where MD 194 becomes York Street. After leaving Taneytown, the state highway becomes Francis Scott Key Highway again as it heads through farmland. MD 194 crosses Piney Creek before reaching its northern terminus at the Pennsylvania state line. The roadway continues north as PA 194 (Frederick Pike) toward the boroughs of
Littlestown and Hanover. MD 194 is a part of the
National Highway System as a principal arterial from its southern terminus in Ceresville to Daysville Road in Walkersville and within the city of Taneytown. ==History==