Here it is - A Complete Map of all Marriott Rewards Hotels, divided by Category as well as the Ritz-Carlton properties - Updated to Post-March 6th Category Changes

https://goo.gl/yo7Bxh - This Link is Outdated as of July 2018

EDIT:

Here's an updated link for post-August 2018 - https://goo.gl/y1M1Za

I had been using a map from 2016 to plan reward travel from a blog post by Drew Macomber on the travelisfree blog.

But with the 2 years of category changes and some hotels added to the portfolio, the 2016 map was no longer as accurate as it used to be for planning purposes.

When the 2018 category changes were announced, I really wanted to see what the extent of the damage was. Especially around the places I book award nights on a regular basis. Also, Category 5 hotels that are now Category 6.

Finally, there are some properties that apparently don't have a reward category, or are so new / haven't opened yet, so no category exists on the booking site. These are indicated with the Category 9s as small red dots. Any updates on those properties would be appreciated.
There were also some Ritz properties that did not display a Tier. These are also indicated with small red dots and are listed as a "Tier 0" for the purposes of this map. Again, if you know of their Tier/ rewards status, updates would be helpful.



For reference - here's the 2016 map:
Complete Map of Marriott Rewards Hotels