The short highway travels entirely through an uninhabited forested region dotted with lakes and swamps.

Near the western end of the route, a logging road branches northwest that provides a rough and winding connection to Highway 658 as well as to the northern terminus of Highway 105 in Red Lake.

[2] Highway 804 is located within Kenora District, in territory that has not been organised into geographic townships.

[citation needed] The route and length of the highway have remained unchanged since it was designated.

[3] The following table lists the major junctions along Highway 804, as noted by the Ministry of Transportation of Ontario.