 State Route 243 ( SR 243 ) , or the Banning @-@ Idyllwild Panoramic Highway , is a 30 @-@ mile ( 50 kilometer ) two @-@ lane highway that runs from Banning , California ( in the north ) to Idyllwild , California ( in the south ) in Riverside County , California . The highway is a connector between Interstate 10 ( I @-@ 10 ) and SR 74 . Along its route , it provides access to the San Bernardino National Forest . A road from Banning to Idyllwild was planned around the turn of the twentieth century , and was open by 1910 . The road was added to the state highway system in 1970 . 
 State Route 243 ( SR 243 ) , or the Banning @-@ Idyllwild Panoramic Highway , <a href='drop_aux' title='1'><mark>is</mark></a>a 30 @-@ mile ( 50 kilometer ) two @-@ lane highway <a href='null_relcl' title='2'><mark>that</mark></a><a href='uninflect' title='3'><mark>runs</mark></a> from Banning , California ( in the north ) to Idyllwild , California ( in the south ) in Riverside County , California . The highway <a href='drop_aux' title='4'><mark>is</mark></a>a connector between Interstate 10 ( I @-@ 10 ) and SR 74 . Along its route , it <a href='uninflect' title='5'><mark>provides</mark></a> access to the San Bernardino National Forest . A road from Banning to Idyllwild was planned around the turn of the twentieth century , and was open by 1910 . The road was added to the state highway system in 1970 . 
State Route 243 ( SR 243 ) , or the Banning @-@ Idyllwild Panoramic Highway , a 30 @-@ mile ( 50 kilometer ) two @-@ lane highway run from Banning , cali ( in da north ) to Idyllwild , California ( in tdasouth ) in Riverside County , California . The highway a connector between Interstate 10 ( I @-@ 10 ) and SR 74 . Along its route , it provide access to thdaan Bernardino National Forest . A road from Banning to Idyllwild was planned around the turn of the twentieth century , and was open by 1910 . Thedaad was added to the date highway system in 1970 .