The last major ruins along the trail.  Our last campsite was near here.  We arrived early so we could get some rest.  We were up by 0300 the next morning so we could be first at the checkpoint which was only 3 minutes from our campsite.  It did not open until 0530, but, we were able to be under cover with seats while those behind us had to stand or sit on very wet ground – it rained a lot during the night – while they waited for the checkpoint to open.  Don’t tell Ramiro, but, I was kind of glad he insisted we get up so early after seeing that.