 In 1919 , the Michigan State Highway Department ( MSHD ) designated a scenic shoreline trunkline to run north from Negaunee to Skanee and L 'Anse by way of Big Bay . The highway would continue from the L 'Anse and Baraga area to eventually end at Ontonagon at an intersection with M @-@ 64 . Local Upper Peninsula historian Fred Rydholm summarized the routing planned in 1925 as extending " ... in a northwesterly direction , across the Dead River , over the Panorama Hills , then west past the Elm Creek swamp , along the south side of Burnt Mountain , across the Cedar Creek , the Cliff Stream and out past Cliff Lake to Skanee and L 'Anse " . This highway was designated as an extension of M @-@ 35 , which ended in downtown Negaunee . Work was completed on a significant portion of the route in Marquette County by 1926 . M @-@ 35 was routed east along M @-@ 15 toward Marquette before turning north @-@ northwesterly toward Big Bay . This section of roadway follows the modern CR 510 in Marquette County . Similar work was completed in Baraga County connecting L 'Anse and Skanee by 1932 . 
