Downloaded areas on app? Where did everything go?

No Mt Rushmore, or Victoria Lake, or like 10 other areas. Maybe it's just my app? But I have only 4 areas for download. (CSP, the Marina, Spear Can, and one other). "South Dakota"

Not just you

It looks like South Dakota is getting majorly reorganized by Mike, one of the admins, which will cause the app data packs to be out of sync with the web site for a couple days. The data packs will rebuild on Sunday. Sorry for the delay!

I just manually rebuilt all of SD. You might have to kill the app on the phone, or wait until tomorrow to wait for the cache to clear, but then it will have the same areas as the site.

Things moved, but your examples are there, just arranged differently. For example:
mountainproject.com/v/the-n… contains Mt. Rushmore.