California State Route 173
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State Route 173 |
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Defined by S&HC ยง 473, maintained by Caltrans | |||||||||||||||||
Length: | 23 mi[1] (37 km) | ||||||||||||||||
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West end: | SR 138 in Hesperia | ||||||||||||||||
East end: | SR 18 near Lake Arrowhead | ||||||||||||||||
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State Route 173 runs from State Route 138 near the west end of Silverwood Lake in the Summit Valley south of Hesperia to State Route 18 south of Lake Arrowhead, USA. It is the only California state highway with an unpaved segment. The route skims the easterly and southerly sides of Lake Arrowhead before meeting State Route 189, Lake's Edge Road, at the south entrance to the Lake Arrowhead mall. The route runs entirely in San Bernardino County, mostly in the San Bernardino National Forest.
This route is eligible for the State Scenic Highway System[2].
[edit] History
Before 1964, Route 173 was part of State Route 2.