 Washington State Route 221 ( SR 221 ) starts at an intersection with SR 14 in the unincorporated community of Paterson . After leaving Paterson the highway travels north through rural farm land as a two @-@ lane highway . A few minor roads are intersected before the roadway turns to the west after about 17 mi ( 27 km ) , before turning back to the north . After the highway resumes its northerly course it climbs into the Horse Heaven Hills , gaining a passing lane through the uphill segments , before finally terminating at SR 22 in south Prosser . 
 Washington State Route 221 ( SR 221 ) <a href='uninflect' title='1'><mark>starts</mark></a> at an intersection with SR 14 in the unincorporated community of Paterson . After leaving Paterson the highway <a href='uninflect' title='2'><mark>travels</mark></a> north through rural farm land as a two @-@ lane highway . A few minor roads are intersected before the roadway <a href='uninflect' title='3'><mark>turns</mark></a> to the west after about 17 mi ( 27 km ) , before turning back to the north . After the highway <a href='uninflect' title='4'><mark>resumes</mark></a> its northerly course it <a href='uninflect' title='5'><mark>climbs</mark></a> into the Horse Heaven Hills , gaining a passing lane through the uphill segments , before finally terminating at SR 22 in south Prosser . 
Washington State Route 221 ( SR 221 ) start at an intersection with SR 14 in the unincorporated community of Paterson . After leaving Paterson the highway travel north through rural farm land as a two @-@ lane highway . A few minor roads are intersected b4 the roadway turn to the west after about 17 mi ( 27 km ) , befob4ning back to the north . After da highway resume its northerly course it climb into tdaHorse Heaven Hills , gaining a passing lane thru thdaphill segments , before fb4 terminating at SR 22 in south Prosser .