State Highway 139
Map of western Colorado with SH 139 highlighted in red
Route information
Maintained by CDOT
Length	72.065 mi[1] (115.977 km)
Existed	1964–present
Major junctions
South end	I-70 in Loma
Major intersections	US 6 / US 50 in Loma
North end	SH 64 in Rangely
Location
Country	United States
State	Colorado
Counties	Mesa, Garfield, Rio Blanco
Highway system
Colorado State Highway System Interstate US State Scenic
← SH 136 → SH 140

State Highway 139 (SH 139) is a 72.065-mile-long (115.977 km) state highway in western Colorado, United States. SH 139's southern terminus is at Interstate 70 (I-70) in Loma, and the northern terminus is at SH 64 in Rangely.

SH 139 begins in the south at exit 15 of I-70 at Loma roughly fifteen miles west of Grand Junction. Just north of I-70 the road intersects U.S. Route 6/US 50. From there the road proceeds northward through very remote, very sparsely populated land to its northern end at SH 64 at Rangely. There are no significant settlements for the road's entire length. Near its midpoint, the road crosses the Book Cliffs at Douglas Pass at an elevation of 8,268 ft (2,520 m).

The route was established in the 1920s, when it began at US 6 in Loma and went north to SH 64. The route was completely deleted in 1954 and reestablished by 1964, where it ended at Douglas Pass. The route was paved from Loma to Douglas Pass in 1972, when the southern terminus was extended to I-70. The route was extended back to SH 64 in 1975.^[2]

County	Location	mi[1]	km	Destinations	Notes
Mesa	Loma	0.000	0.000	I-70 – Grand Junction, Utah	Southern terminus; I-70 exit 15.
		1.253	2.017	US 6 / US 50 – Fruita
Garfield	No major junctions
Rio Blanco	Rangely	72.065	115.977	SH 64 – Rangely, Meeker	Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

• List of state highways in Colorado

Media related to Colorado State Highway 139 at Wikimedia Commons