California county routes in zone R

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California county routes in zone R
Highway names
CountyCounty Route X (CR X) or Route X
System links

In the California Route Marker Program, which designates county routes in California, only two highways exist in the "R" zone, which encompasses Riverside County. A third route existed until 1970.


County routes in California were first established in the late 1950s as a way to provide better connectivity between rural areas and the state's extensive highway system. The routes are maintained by individual counties but are designated and numbered according to a statewide system. The "R" zone is one of several zones within the California county route system, with each zone typically assigned a letter followed by a number.


The California county routes in zone R serve a vital role in connecting rural communities and smaller towns to the state's larger highway network. These routes often provide the only means of access to remote areas and serve as vital lifelines for residents, businesses, and emergency services.


County Road R1

LocationMountain CenterBanning

County Route R1 was converted into SR 243 in 1970. Its southern end was at SR 74 in Mountain Center and its north end was in Banning.[1]


County Road R2

LocationDesert CenterEagle Mountain
Length11.26 mi[2] (18.12 km)

County Route R2 is also known as Kaiser Road. Its southern end is SR 177 near Desert Center, and its north end is at Eagle Mountain, a modern day ghost town. Eagle Mountain is not openly accessible; its perimeters have been fenced and gated, with a site manager appointed to handle access requests.

The route was defined in 1964, and has not been altered since then.

Major intersections

The entire route is in Riverside County.

Desert Center0.00.0 SR 177Southern terminus
Eagle Mountain11.2618.12Northern terminus of CR R2 at the southern boundary gate of Eagle Mountain;
road continues as Kaiser Road inside the ghost town
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


County Road R3

Length23.45 mi[2] (37.74 km)
Existed1966 or 1973[2]–present

County Route R3 is also known by several other names along its route. Portions of the highway are called Sage Road, Cactus Valley Road, and State Street. Its southern end is SR 79 at Radec and its north end is SR 74.

At its north end in Hemet, it provides a major transportation route.

Historic information conflicts as to the date the route was defined. Some information indicates the highway was created in 1966, although other sources give a commissioning date of 1973. This is a former routing of SR 79.[2]

Major intersections

The entire route is in Riverside County.

Radec0.00.0 SR 79 – Anza, TemeculaSouthern terminus
Sage5.18.2Wilson Valley Road - Aguanga
Hemet20.032.2Domenigoni Parkway - Menifee
23.137.2 SR 74 (Florida Avenue)Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ "California Road Signs and Sights Gallery: Section of 1966 official highway map".
  2. ^ a b c d e Faigin, Daniel. "County Routes 'R'". California Highways. Retrieved 2010-02-18.