In looking at this site, it looks like your pop-up is pushed all the way to the end of the concrete pad - and the picnic table is on the sand pad. With your van parked infront of the pop-up, it appears to take up the rest of the concrete pad up to the road.
If this is correct, I don't see how I'll have room for my 27' 5th wheel, a tent on the tent pad and a F250 without sticking out in the road.
Only thing I remember about our stay 5 years ago in 300 loop was that DH had a heck of a time manuevering into our site. He isn't one that handles stressful situations like that very well!
EDITED: Corrected that the van does appear to have room before the end of the concrete pad. Not sure how much.