Is there a campground or a place where a motorhome could park?
I am not sure, but I would also check with the front desk hopefully they can assist you.
Not right there but close by there are many campgrounds.
If you are staying in one their units it can be worked out. If y.ou are looking for an RV spot with hookups, they don't have them.
They do have some oversized vehicle parking. I would check ahead due to snow accumulation this year. Summer no problem
Not around the lodge but many campgrounds in the area. Sisters, Prineville, Bend.
You should contact the lodge directly for that. As well, I'm sure they have suggestions for sites nearby if they cannot accommodate on site. They are very helpful.
I am not sure if there is something on the grounds of the resort, but there are state and federal (and private) parks and campgrounds nearby. If all you want to do is park the motorhome (not stay in it), I recommend calling the Lodge directly. The lodge parking lot and the parking lot for the conference center could accommodate parking for smaller motorhomes easily, but you should discuss the specifics with the lodge.
Get an answer from The Lodge at Eagle Crest staff and past guests.