retaining wall to support road for electric and gas powered cars and vehicles in wilderness area of arizona great outdoors

background car tree water silhouette sport vintage summer nature sun spring road mountain travel forest sky asphalt landscape country highway rural trip journey blue cloud route empty grass freedom europe hill speed transport beautiful sunset sunrise transportation rock sunny sunlight countryside motion drive clouds outdoor scenic national park line retaining wall support electric gas powered cars vehicles wilderness area arizona great outdoors outdoors late afternoon rebarb metal brick structure bridge