Unable to open .dwg topo file in SketchUp

Yes, can’t open a client’s dwg t.opo file. Perhaps problem with how to configure. File attached.
ACAD-Honey Rock Landing Topo 2022.dwg (1.4 MB)

It imports fine for me but the geometry is neaarly invisble because, when imported using Feet as the import units, it’s almost 490 miles from the origin.

After moving the geometry closer to the origin it looks like this. I expect the top stuff needs to be moved down, too. You can do that part.

honey rock landing.skp (948.2 KB)

Wow, strange! Thanks so much.

.dwgs are often strange