 East of the intersection with MD 658, Alt US 40 turns northward, passing through LaVale toward the Narrows, bypassing Haystack Mountain to the north, as opposed to I-68, which passes directly over Haystack Mountain, paralleling Braddock Road (MD 49).Northeast of LaVale, Alt US 40 intersects MD 36 at the northern terminus of MD 36.Alt US 40 then passes through the Narrows, a gap between Haystack Mountain and Wills Mountain carved by Wills Creek, into Cumberland, where it follows Henderson Avenue and Baltimore Avenue to exit 44 on I-68, where Alt US 40 ends.