We will soon be first time RVers and are thinking of driving to Estes Park, CO for the elk rut. What should I expect RV-wise in that area mid-to-late Sept/early Oct? We have been to Estes several times but only in summer. What will the RV "density" then? Are RV parks closing for the season then? If not, I presume its wise to make a reservation? Any pointers for exceptional RV parks there in the surrounding areas? Tips? Hints? Not sure where we will go afterward, perhaps the Grand Canyon. Same questions as above? Anyone?? Thanks!