Navigating to a 404 Route with Reach Router

I have the following routing config:

<Router>
 <NotFound default />
 <ResourcesContainer path="/resources" />
 <ResourceContainer path="/resources/:id" />
 ...
</Router>

This catches any routes that are not handled, and renders the <NotFound /> component at the URL that wasn't found, so if I type example.com/blah, I see the <NotFound /> component rendered, and in the address bar I see example.com/blah. I also use this URL on the page to display a message:

The page 'example/blah' was not found.

So far so good. However I also need to handle 404s from within in /resources/* routes. My <ResourcesContainer/> component uses the last part of the path to hit a GraphQL API for a resource with that id. If the API returns to tell the client that resource doesn't exist, I would like to mimic the behaviour outlined above. However, I don't have a page to navigate to. I could duplicate the <NotFound /> route and give it an explicit path of /404, then navigate to that. However the URL would then be /404 and not the original resources/* path that wasn't found.

The following solves part of the problem, giving me a page to redirect ot, but means the URL is rewritten to /404 in all cases:

<Router>
 <ResourcesContainer path="/resources" />
 <ResourceContainer path="/resources/:id" />
 <NotFound path="/404" />
 <Redirect noThrow from="*" to="/404" />
 ...
</Router>

How can I set this up so that I can navigate to the <NotFound /> route without losing the original URL?

from Navigating to a 404 Route with Reach Router