Wow, and I thought I'd racked up a lot of mileage, Nellie.
I've traveled every extant LD troute west of Chicago in both directions (except Empire Builder WB CHI-SPK and the Sunset route east of SAS) and have been on some routes that the DOT ordered gutted.
Last time I checked I had 27,000 miles under my belt. With my California Zephyr trip last summer, I likely have close to 30,000 miles.
One giant trip in 2000 involved this routing that involved 6 days in a row on the train in sleeper and in coach:
-OKC-FTW
-FTW-SAS
-SAS-LA (Sunset was OT)
-LA-PDX
-PDX-SPK-SPK-PDX-PDX-SEA- SEA-CHI
-CHI-FTW
-FTW-OKC
(car to/from OKC from KCY)
Other trips:
-Osceola, Iowa -Sacramento, Calif., via Wyoming WB, Glenwood Canyon EB.
-Topeka-Galesburg, Galseburg-SLC-Vegas-LA, LA-Topeka
-Topeka-Las Vegas, N.M., Las Vegas - CHI, CHI-NOL, NOL-CHI, CHI-KCY (straight through trip)
I've also been
-KCY-LA, LA-Oakland
-OSC - SLC and back, three day weekend trip.
-Bakersfield-Oakland
-EMY-OMA-KCY
-KCY-CHI-PGH-PHL (via Three Rivers) RT
-Miami-Rocky Mt., NC - RT two-day trip.
-KCY-Flagstaff.
-Tucson-SAS, SAS-STL, STL-KCY
-FTW-STL, STL-KCY, KCY-Topeka, RT
-Newton, Kan. - Perry, Okla.
(several trips in late 1970s).