It's on the Koroc River in Kuururjuaq National Park, in the Torngat Mountains, in the far northeast of Quebec.
You can't drive there, as Michael Seifert already answered. The only way in I saw was by plane, from Quebec City or Montreal to Kuujjuaq, then to Kangiqsualujjuaq.
Reddit user xJoeCanadian wrote in a comment on the same image:
This is Torngait [sic] Mountains and the Koroc River! My ancestors have known this land for thousands of years, and I worked there too. Love this place.
Here's a Nunavik Parks page that uses a very similar image: Follow the Inuit's Footsteps in the Torngats. Other Nunavik Parks pages have pictures of the same location:
source -- photo credit Ulysse Lefebvre
source -- "Parc National Kuururjuaq, mars 2018. crédit photo: Aubrey Claude-Desroches". Translation: "Kuururjuaq National Park, March 2018. Photo credit: Aubrey Claude-Desroches". More: another, other side of the valley, head-on view of the mountain valley
source under "Day 6" -- photo credit Julie Dyotte
Here's the same place in the summer:
source under "Day 3" -- photo credit Catherine Le Gall-Marchand
I also found this panorama on Google Maps that seems to be in the mountain valley, though it's not marked on the right spot on the map. The exact spot seems to be here, meaning the other photos are taken on the other side of the valley looking south.
Now, if you really did want to drive somewhere in northern Quebec, you can drive to the Radisson dam, which is on James Bay