The Santa Fe had introduced its "Pleasure Dome" lounge with the private "Turquoise Room" on its flagship Super Chief in 1951. Not to be outdone, the Union Pacific placed its own order for new dome equipment, and the Streamliner City of Los Angeles became the Domeliner City of Los Angeles effective with the arrival of the new "Astra-Domes" in 1955. The new equipment featured dome diners, unique to Union Pacific, with their own private "Gold Room" on the lower level for small private parties.

At this time as well, UP's Challenger was consolidated with the City of Los Angeles. The trains retained separate numbers and were marketed separately; coach passengers were assigned to the Challenger section while the City portion became all-Pullman. It is not clear from the timetable whether they were operated as a combined whole or as first and second sections; perhaps both as according to passenger demand.

Also effective in 1955, the Milwaukee Road replaced the Chicago and North Western as UP's partner railroad between Omaha and Chicago. This association would continue until the handover of passenger service to Amtrak in 1971.


From the pages of the Official Guide, July 1956

Milwaukee Road heraldUnion Pacific RR shield herald

The City of Los Angeles
The Challenger

The Milwaukee Road
Union Pacific Railroad
June 2, 1956

Through Sleepers New York-Los Angeles
17 Connecting Train Number (New York Central) 68
5 15P Dp 0.0 New York, NY (Grand Central Sta.) (ET) Ar 8 00A
9 30A Ar 960.7 Chicago, IL (La Salle St. Sta.) (CT) Dp 3 00P
69-59 Connecting Train Number (Pennsylvania) 58-2
5 10P Dp 0.0 New York, NY (Penn Station) (ET) Ar 8 45A
6 41P 85.9 North Philadelphia, PA 7 18A
8 45A Ar 907.7 Chicago, IL (Union Station) (CT) Dp 3 00P
103/107 Train Number 104/108
Daily Miles (Chicago, Milwaukee, St. Paul & Pacific) Services Daily
6 45P Dp 0 Chicago, IL (Union Station) (CT) C R Ar 11 00A
8 53P Ar 138 Savanna, IL (Dubuque via bus) C Dp 8 32A
8 59P Dp Ar 8 25A
10 25P 227 Marion, IA (Cedar Rapids via bus) C 7 04A
12 20A Ar 362 Perry, IA (Des Moines via bus) C Dp 4 56A
12 25A Dp Ar 4 51A
3 00A Ar 488 Omaha, NE C R Dp 2 45A
(Union Pacific)
3 10A Dp 488 Omaha, NE C Ar 2 30A
5 09A Ar 632 Grand Island, NE C Dp 12 20A
5 10A Dp Ar 12 19A
6 55A Ar 769 North Platte, NE (CT) C Dp 10 28P
6 00A Dp North Platte, NE (MT) Ar 9 23P
7 43A Ar 893 Sidney, NE C Dp 7 42P
7 44A Dp Ar 7 41P
9 30A Ar 995 Cheyenne, WY C Dp 6 20P
9 40A Dp Ar 6 10P
11 00A Ar 1051 Laramie, WY C Dp 4 50P
11 01A Dp Ar 4 49P
12 55P Ar 1168 Rawlins, WY C Dp 2 55P
12 56P Dp Ar 2 54P
3 15P Ar 1302 Green River, WY C Dp 12 35P
3 25P Dp Ar 12 25P
5 06P 1402 Evanston, WY C 10 44A
6 45P Ar 1478 Ogden, UT C Dp 9 10A
6 55P Dp Ar 9 00A
7 40P Ar 1514 Salt Lake City, UT C Dp 8 15A
7 50P Dp Ar 8 05A
10 51P Ar 1721 Milford, UT (MT) C Dp 4 58A
10 54P Dp Ar 4 55A
2 30A Ar 1964 Las Vegas, NV (PT) C Dp 11 20P
2 40A Dp Ar 11 10P
7 45A Ar 2230 San Bernardino, CA C Dp 6 08P
7 50A Dp Ar 6 03P
8 10A 2240 Riverside, CA C 5 43P
9 10A 2292 East Los Angeles, CA C 4 50P
9 30A Ar 2299 Los Angeles, CA (Union Psgr. Tml.) (PT) C Dp 4 30P

Trains 103/107 (Chicago-Los Angeles): 19 stops; 40:45; 56.4 MPHTrains 104/108 (Los Angeles-Chicago): 19 stops; 40:30; 56.8 MPH


(Union Pacific Notes)

Westbound
No. 103—DOMELINER, CITY OF LOS ANGELES. Daily.
Radio and Recorded Musical Programs.

Dome Observation-Lounge..Chicago to Los Angeles—for use of sleeping car passengers.

Streamlined Sleeping Cars..Chicago to Los Angeles—11 Double Bedrooms

Chicago to Los Angeles—5 Double Bedrooms, 2 Compartments, 2 Drawing-rooms.

Chicago to Los Angeles—10 Roomettes, 6 Double Bedrooms

Chicago to Los Angeles—5 Double Bedrooms - Club

New York to Los Angeles—10 Roomettes, 6 Double Bedrooms (N.Y.C. No. 17 daily).

New York to Los Angeles—10 Roomettes, 6 Double Bedrooms (P.R.R. No. 1-59 to Chicago).

Omaha to Los Angeles—6 Roomettes, 4 Double Bedrooms, 6 sections. (Occupancy 9:30 p.m.)

Dome Dining Car...Club and a la carte service.

Cars to Chicago run via C.M.St.P. & P. to Omaha


No. 107—CHALLENGER DOMELINER. Daily.

Club Lounge Car...Chicago to Los Angeles.

Reclining Seat-Leg Rest Coaches..Chicago to Los Angeles (all seats reserved).

Dome Coach...Chicago to Los Angeles—36 Leg Rest Seats—All Reserved.

Dining Car...Chicago to Los Angeles—Challenger meals. Complete table service. Also club and a la carte service.


Eastbound
No. 104—DOMELINER, CITY OF LOS ANGELES.  Daily.

Radio and Recorded Musical Programs.

Dome Observation-Lounge..Los Angeles to Chicago—for use of sleeping car passengers.

Streamlined Sleeping Cars..Los Angeles to Chicago—11 Double Bedrooms

Los Angeles to Chicago—5 Double Bedrooms, 2 Compartments, 2 Drawing-rooms.

Los Angeles to Chicago—10 Roomettes, 6 Double Bedrooms

Los Angeles to Chicago—5 Double Bedrooms - Club

Los Angeles to New York—10 Roomettes, 6 Double Bedrooms (N.Y.C. No. 68 east of Chicago).

Los Angeles to New York—10 Roomettes, 6 Double Bedrooms (P.R.R. No. 58-2 east of Chicago).

Los Angeles to Omaha—6 Roomettes, 4 Double Bedrooms, 6 sections. (Occupancy at Omaha until 7:30 a.m.)

Dome Dining Car...Club and a la carte service.

Cars to Chicago run via C.M.St.P. & P. to Omaha


No. 108—CHALLENGER DOMELINER. Daily.

Club Lounge Car...Los Angeles to Chicago.

Reclining Seat-Leg Rest Coaches..Los Angeles to Chicago (all seats reserved).

Dome Coach...Los Angeles to Chicago—36 Leg Rest Seats—All Reserved.

Dining Car...Los Angeles to Chicago—Challenger meals. Complete table service. Also club and a la carte service.


Note: Limited handling of baggage on these trains; consult agent.

NOTE: Passengers with tickets routed via Union Pacific between Omaha, Kansas City or St. Joseph, Mo., Leavenworth, Kan., and Daggett, Cal., or beyond are entitled to a free side-trip from Las Vegas to Hoover Dam (Lake Mead) and return. [Daggett is the station immediately east of Barstow - 90 miles east of San Bernardino.]

 (Milwaukee Road notes)

EQUIPMENT
All Cars Are Air-Conditioned
DOMELINER "CITY OF LOS ANGELES"
Nos. 103 and 104—Daily

BETWEEN CHICAGO AND LOS ANGELES

Dome Observation Lounge Car

Pullman Sleeping Cars—10 Roomettes, 6 Double Bedrooms [1038].

11 Double Bedrooms [1036].

5 Double Bedrooms, Club Car [1035].

5 Double Bedrooms, 2 Compartments, 2 Drawing-rooms [1037].

Dome Dining Car—(Club and a la carte service).

Cafe Lounge Car—(Club and a la carte service).


BETWEEN NEW YORK AND LOS ANGELES

Pullman Sleeping Cars—10 Roomettes, 6 Double Bedrooms [1710]. (In N.Y.C. System No. 17 westbound and No. 68 eastbound between New York and Chicago.)

10 Roomettes, 6 Double Bedrooms [PA-1]. (In P.R.R. No. 1-59 westbound and No. 58-2 eastbound between New York and Chicago.)


Some of these cars do not operate every trip. Consult ticket agent for particulars.

"CHALLENGER" DOMELINER
Nos. 107 and 108—Daily

BETWEEN CHICAGO AND LOS ANGELES

Club Lounge Car.

Dome Coach—(Leg rest seats reserved - Dome seats not reserved) [1072].

Reclining Seat-Leg Rest Coaches—(All seats reserved) [1070-1071-1073-1074-1075].

Dining Car.


Car numbers shown are westbound numbers.

Note: Limited handling of baggage on these trains; consult agent.