page_title: Ontario Highway 121
section_title: Major intersections
hierarchical_section_title: Ontario Highway 121 / Major intersections
context_page_description: King's Highway 121, commonly referred to as Highway 121, was a provincially maintained highway in the Canadian province of Ontario that connected several communities in the cottage country region of Central Ontario on the southern edge of the Canadian Shield. Between Fenelon Falls and Minden, Highway 121 served as an alternative route to Highway 35, which was severely congested during summer weekends. From Minden, the highway branched east to Haliburton Village and thereafter followed the present route of Highway 118 to Highway 28 in Paudash.
  Highway 121 was established in 1955, connecting to Highway 35 near Fenelon Falls and Minden. It was extended to Tory Hill via Haliburton Village the following year. 1956 also saw the discovery of significant uranium deposits in the Bancroft area, prompting the Department of Highways to construct a new east–west route, Highway 109. It was built to connect Highway 503 at Tory Hill with Highway 28 near Paudash; however, in 1964 it would be absorbed into the routing of Highway 121, bringing the highway to its maximum length of 133.7 kilometres.
context_section_description: The following table lists the major junctions along Highway 121, as noted by the Ministry of Transportation of Ontario. 
caption: A map of Kawartha Lakes, with route 121 highlighted in orange.
  (Click to enlarge)