State Route 490 (SR 490) is a state highway in White Pine County, Nevada. The route serves a state prison north of Ely.

The route begins at the entrance to the Ely State Prison, a maximum-security penitentiary north of Ely. From there, the route follows Lackawanna Road in a southeasterly direction through desert terrain for nearly 3 miles (4.8 km). SR 490 then cuts through a short mountain gap and turns nearly due south. After another 3 miles (4.8 km), the route turns easterly at a T-intersection. SR 490 then travels about 2 miles (3.2 km) further to the southeast to reach its terminus at a junction on U.S. Route 93 northeast of Ely and just south of the Ely Airport.

SR 490 was added to the state highway system on January 17, 1992.

The entire route is in White Pine County.

Location	mi	km	Destinations	Notes
​	0.00	0.00	Ely State Prison entrance	Western terminus
​	8.93	14.37	US 93 – Ely, Wells	Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

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