The Lakeside Mountains are about a 34 miles (55 km) long[1] mountain range located on the southwest perimeter of the Great Salt Lake; the range is located in northeast Tooele County and south Box Elder County in Utah, United States.

The north section of the range terminus is at the community of Lakeside, Utah, and the region lies on an eastern border of the Great Salt Lake Desert.

A small low elevation saddle separates the south from the north section.

A northwest stretch of I-80 from Delle, skirts the range foothills, then enters the north of the Cedar Mountains, before turning west through the Great Salt Lake Desert.

From the north Cedar Mountains, Puddle Valley Highway (improved road) transits due-north through Puddle Valley, then enters the west flank region of the north section of the range; a small valley called "Death Valley", located in a hilly foothill region, borders the Great Salt Lake Desert, on the desert's east, about 3 mi; Death Ridge, a subridge is 1 mi east; the north mountain terminus near Lakeside continues as named: Scad Ridge, Sedal Valley, Cave Ride, Great Salt Lake shoreline, (all 1 mi apart from each other).