SR-88 begins at the south end of the Green River bridge near Ouray, within the Uintah Basin.

It heads northwards, gradually climbing through the valley of that river, passing east of Pelican Lake, and onto a more rugged plateau just beyond the intersection with 4500 South (which carried SR-88 until 1969).

[3] State Route 209 was created in 1941, heading north from SR-88 near Leota to US-40 east of Fort Duchesne.

[4] In 1969, SR-88 was realigned to follow SR-209, with the old alignment to Fort Duchesne becoming a county road.

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