CalTopo Export Export from CalTopo Cottonwood/Marble Road 10.5mi (17km). The first 8 miles (13km) is typically passable to a high clearance vehicle. After the 8 mile point, the road drops steeply into a deep wash where 4x4 is required due to pockets of deep gravel and small boulders for the next 2.1mi (3.4km) to the junction with Marble Canyon Road. clampToGround 1 -117.1476674079895,36.60571843703857,0 -117.14781761169434,36.606631373447165,0 -117.14876174926758,36.60723425005708,0 -117.15067148208618,36.607733772821156,0 -117.15258121490479,36.60794047094963,0 -117.15429782867432,36.607354824813584,0 -117.15524196624756,36.60690697476784,0 -117.15670108795166,36.607492624304484,0 -117.15852499008179,36.60802659500633,0 -117.15878248214722,36.607957695768654,0 -117.16350317001343,36.608319416079766,0 -117.16835260391235,36.60861223604145,0 -117.17150688171387,36.60892227949498,0 -117.1732234954834,36.60959403603516,0 -117.18807220458984,36.61371057010947,0 -117.19101190567017,36.61362445240026,0 -117.20053911209106,36.612918283557036,0 -117.21238374710083,36.61202264547807,0 -117.23817586898804,36.61007631917356,0 -117.23909854888916,36.61012799218808,0 -117.24137306213379,36.610610271987305,0 -117.2437334060669,36.6103346838999,0 -117.24525690078735,36.61039066280986,0 -117.24600791931152,36.61039927494624,0 -117.24650144577026,36.610494008383036,0 -117.24689841270447,36.61055429323675,0 -117.24796056747437,36.611234647604626,0 -117.24801421165466,36.611458560387604,0 -117.24815368652344,36.6115791285399,0 -117.24899053573608,36.61213029483565,0 -117.24939823150635,36.61271590470851,0 -117.25048184394836,36.613327345565246,0 -117.25084662437439,36.61394739331385,0 -117.25208044052124,36.61480856247121,0 -117.25271344184875,36.615557771814466,0 -117.25352883338928,36.61630697387794,0 -117.25396871566772,36.616685877896764,0 -117.25440859794617,36.61728006454032,0 -117.25484848022461,36.617874246604714,0 -117.25508451461792,36.61863203737597,0 -117.25580334663391,36.61960509869338,0 -117.2576379776001,36.62242949029853,0 -117.25835680961609,36.62399663856166,0 -117.25842118263245,36.624642432147276,0 -117.2585928440094,36.62562402803505,0 -117.25886106491089,36.62633008050526,0 -117.259601354599,36.62720833186858,0 -117.26006269454956,36.627948810536104,0 -117.26042747497559,36.62868067199582,0 -117.26175785064697,36.629498626579306,0 -117.26226210594177,36.62955889657363,0 -117.26285219192505,36.62959333654923,0 -117.2634208202362,36.62976553619633,0 -117.26495504379272,36.630480160619975,0 -117.2651481628418,36.63076428656172,0 -117.26512670516968,36.63122921766135,0 -117.26536273956299,36.63171997522337,0 -117.26558804512024,36.63209019377214,0 -117.26582407951355,36.63270148097124,0 -117.26634979248047,36.633502173769315,0 -117.26744413375854,36.63478498682284,0 -117.26762652397156,36.635723407006644,0 -117.26838827133179,36.63717836616133,0 -117.26872086524963,36.63846111800968,0 -117.26955771446228,36.640398118914256,0 -117.2697401046753,36.64106099248265,0 -117.27020144462585,36.64228341968885,0 -117.27011561393738,36.64266219601316,0 -117.27082371711731,36.64300653650992,0 -117.27283000946045,36.64376408018441,0 -117.27448225021362,36.64395346493892,0 -117.2750186920166,36.644151457593516,0 -117.27582335472107,36.6444785747773,0 -117.27813005447388,36.64472821590397,0 -117.27892398834229,36.64498646449388,0 -117.28024363517761,36.64512419672114,0 -117.28144526481628,36.645098371947284,0 -117.28238940238953,36.6450553306383,0 -117.28390216827393,36.64410841575536,0 -117.2844386100769,36.64333365855607,0 -117.28476047515869,36.643084012909554,0 -117.28527545928955,36.643084012909554,0 -117.28575825691223,36.643135663799356,0 -117.28652000427246,36.64344126418863,0 -117.28724956512451,36.6435101317146,0 -117.28720664978027,36.642821453684235,0 -117.28720664978027,36.6425115465618,0 -117.28797912597656,36.6425115465618,0 -117.28853702545166,36.64182285960349,0 -117.28905200958252,36.64175399056902,0 -117.29025363922119,36.64196059748773,0 -117.29111194610596,36.64199503192029,0 -117.2914981842041,36.64158181771344,0 -117.29175567626953,36.64037659694955,0 -117.29183541107625,36.640243407185444,0 -117.29183069430292,36.640194710344076,0 -117.29219228960574,36.638915967196226,0 -117.29257123544812,36.63850039243698,0 -117.29263074696064,36.637997813522816,0 -117.29326793923974,36.637233048677444,0 -117.29367714375257,36.63628865964711,0 -117.29345703497529,36.63613921031356,0 -117.29355367831886,36.635926058515906,0 -117.2933579608798,36.6347658354789,0 -117.29358661919832,36.63352564908564,0 -117.2938291914761,36.63340101018548,0 -117.2941439319402,36.63260707631707,0 -117.29472689330578,36.632240284234285,0 -117.29571530285574,36.63197986618308,0 -117.29572947878319,36.63195322250217,0