delivered the opinion of the court.
The Atchison, Topeka and Santa Fe Railway Company, the Southern Pacific Company and the San Pedro, Los Angeles and Salt Lake Railroad Company, brought this suit against the Interstate Commerce Commission in the Circuit Court of the United States for the District of Kansas, first division, to restrain the enforcement of an order of the Commission made in April, 1910. The order required these companies to desist 'from exacting their present charge of $2.50 per car for delivering and receiving carload freight to and from industries located upon spurs and sidetracks within their respective switching limits’ in Los Angeles, California, when such carload freight 'is moving in interstate commerce incidentally to a system-line haul.’ It also prohibited the exaction of any charge whatever, other than the charge for transportation from points of origin to destination, for delivering or receiving carload freight in such cases.1
*303After answer had been filed by the Commission, the suit was transferred to the Commerce Court, and the United States, the Associated Jobbers of Los Angeles and the Pacific Coast Jobbers’ and Manufacturers’ Association, intervened. The United States thereupon moved to dismiss the bill for want of equity and the petitioners asked for a preliminary injunction. The Commerce Court, denying the Government’s motion, suspended the Commission’s order until the further order of the court (188 Fed. Rep. 229, 929); and this appeal is prosecuted.
The complaint of the petitioners in substance is that they have established in the city of Los Angeles their public terminals, including what are known as team tracks and freight sheds, for the accommodation of the public in receiving and delivering carload freight; that these facilities are entirely adequate for the pürpose, and are *304sufficient to handle all the carload freight shipped or delivered in the city, including that now received or delivered upon the industrial spur tracks in question; that the spur-track service has been established simply for the convenience of the shippers thus served; that it is a service essentially distinct from the line haul, and additional thereto, being of great benefit in .the saving of cartage charges to the favored shippers for whose use the spur tracks were constructed; that the industries or plants located upon the spurs are distant from the main tracks, in the case of the Atchison Company from 1-5 mile to 3§ miles, in that of' the Southern Pacific Company from 200 feet to 7 miles, and in that of.the San Pedro Company from 1-5 mile to 4 miles, and that the special switching service involves a much greater expense than if the carload freight were re^ ceived or delivered on the team tracks or at the freight sheds of the carriers respectively; that the charge of $2.50 per car for this service is entirely reasonable and one which the carriers are entitled to make in addition to the line-haul rate; and that as such it has been duly specified in their published tariffs. It is also averred that, while in the ¡contracts governing the construction and maintenance of the spur tracks no specific sum was prescribed for the service of receiving and delivering carload freight thereon, the charge above mentioned had been generally established; that at the time of the making of these contracts .the shippers understood and willingly consented that, if the railway company performed this special service, there should be additional compensation and that such charge has generally been maintained and collected. . The adequacy of the public terminal facilities for carload freight in Los Angeles (consisting of the team tracks and freight sheds of the carriers respectively), the facts set forth with respect to the construction of the spur tracks, their location, the acquiescence in the switching charge and its maintenance, were established before the Com*305mission, it is alleged, by undisputed evidence. It is further stated that on account of water and other competition, the rates of transportation to and from Los Angeles have been forced to an exceedingly low basis so that the companies do not receive, the amount to which they are justly entitled and that they ought not to be required to perform the service in question without reasonable reward. The Commission’s order was assailed as beyond its authority, involving a discrimination in favor of the owners of plants located upon the spur tracks and a deprivation of the property of the carriers without due process of law. ■
The report of the Commission (18 I. C. C. 310) was made a part of the bill. It appears that the proceeding before the Commission was instituted by the Associated Jobbers of Los Angeles and was directed against two distinct practices, involving the spur-track switching charges incident to a system-line haul and to a foreign-line haul respectively. The propriety of such a charge when the line haul was by a foreign carrier was sustained, and the prohibitory order was confined to cases where the charge was made in connection with a system-litie haul. The pertinent facts as found by the Commission are substantially as follows:
Each of the carriers has designated certain territory as within its switching or yard limits in the city of Los Angeles, extending for 6 or 7 miles in a general easterly and westerly direction, and including numerous tracks, main lines, branch lines, industry spurs, classification tracks, team tracks, freight-shed tracks, hold tracks, repair tracks, and others, and also their stations, freight sheds, derricks, roundhouses, and other structures. Freight moving in carloads is delivered at team tracks, at freight sheds, or at industry spurs. At team tracks and freight sheds no charge is imposed for the receipt or delivery of such carload freight over the freight rate named in the tariffs, while at industry spurs an additional *306charge of $2.50.is imposed on every loaded car moving either in or out. These industry spurs vary in length, some leading directly from the main track into or alongside of the industries served, while others are of greater length and branch at one or more points, short spurs running off from what is known as the 'lead’ to serve other industries in the. immediate neighborhood. These spurs have been constructed under substantially uniform contracts.1 None of the industries at Los Angeles fur*307nishes its own motive power, and interline switching is done from the interchange track to the industry by the locomotives of the delivering line, the carrier performing the switching service. %
The Commission found that these spur tracks were portions of the terminal facilities of the carriers with whose lines they connected, being distinguished from mere plant facilities such as were under consideration in Chicago & Alton Ry. Co. v. United States, 156 Fed. Rep. 558, and in the cases of the General Electric Company and Solvay Process Company, 14 I. C. C. 237, 246. Each of the spurs, here considered, said the Commission, is in a real sense a railroad terminal at which the carrier receives and delivers freight. It further appears from the report that the charge for spur-track delivery has been made by all of the carriers at Los Angeles as long as the railroads have had access to that city; that it was first imposed by the Southern Pacific and as the other lines came in they adopted the policy of the line already there; that as to certain commodities the charge was not imposed until quite recently and at. all times until the Hepburn Act went into effect there was great variation in charge as between individual shippers-. It is added that there are 97 places in California to which what are known as coast terminal rates apply, rates lower than to intermediate points; only in Los Angeles, San Franciso And San Diego is there such a charge for spur-track delivery, though in many of these places such delivery is furnished. To the north, in Portland, Seattle, Tacoma, and a large number of other points which also enjoy coast terminal *308rates, the Southern Pacific, Northern Pacific and Great Northern lines, impose no such charge, and to the east where defendants’ lines have their termini in cities competing with Los Angeles, this charge is also unkiiown.
The Commission thus described the character of the service in question: “Spur-track delivery is a substitute service, a service which it has solicited the right to give, as the evidence here shows, a service which costs the industry for the installation of the.track and the use of its property as a railway terminal. It is a service over the carrier’s own. rails to a point where it yields possession of the. property transported and which involves no greater expense than would team-track delivery. It relieves the carrier’s team tracks and sheds, necessitating less outlay for expense of yards, in a crowded city, promotes the speedy release of equipment, and vastly aids in conducting a commerce- which is greater than the carrier’s own facilities could freely, adequately, and economically handle.
“Again it is not to be overlooked that the delivery given on an industry spur is not supplemental to any other delivery. Cars destined to industry spurs are not placed first at a spur, depot, or on the team tracks, or at the sheds, and later switched to oblige the consignee. A train of freight cars goes to the breaking-up yards which lie at the entrance to the city, and there it is divided up with respect to the character of the freight in the various cars and their destination. No one has access to the cars at this point. This yard is purely a railroad facility. After the cars are segregated they are taken to the tracks to which they are ordered — some to the various team tracks distributed along the main fine, some to different industries, some perhaps to the railroad shops or to freight sheds or to the stock yards. Before the cars are placed the consignees are given notice of the tracks to which they are to be sent, so that there is no confusion, and the switch *309engines which place the cars on one track also serve to-haul the Toads’ in and 'empties’ out at the.other tracks. After a most exhaustive inquiry we cannot find, taking this service as a whole in the same way that it is treated by the carriers, that the service is more expensive to the carrier than if all cars were given team-track delivery.
“An additional charge-may be made when an additional service is given. But the service here given is not additional to that for which the rate pays. If the shipper pays for team-track delivery and does' not receive it, but asks instead and is given a sidetrack delivery- which costs the carrier no more, he may not be compelled to pay an additional charge upon the assumption that he has received a terminal team-track service which has not been given. A carrier may not so construct its rates as to compel an extra charge for like service/ and this, in our judgment, the defendants at Los Angeles have done.” 18 I. C. C. pp. 317, 318.
1. It is urged that the Commission’s order rests upon a construction of the statute which would forbid any carrier from separating its terminal and haulage charges on the same shipment, and that this is a fundamental misconception of the law.
We do not think that the order is open to this objection. It is true that the Commission directed attention to the distinction between the American and English methods of stating rates, pointing put that the English practise of fixing separate schedules for 'conveyance’ and 'station terminal’ rates had not obtained in this country so far as the records of the Commission show. The opinion was expressed that the provisions of the Act to Regulate Commerce were enacted with reference to the American method of rate-making and that the rate which the statute requires to be published is 'a complete rate,’ including 'not only the charge for hauling but the charge for the use of *310the terminals at both ends of the line.’ 18 I. C. C. pp. 315, 316. We need-not stop to consider whether this'is a correct interpretation of the act, for the question of a segregation of haulage and terminal charges (meaning, by the latter, charges- for the use of ordinary terminal stations in receiving and delivering goods) was not before the Commission and its propriety was not necessarily involved in the decision. No such segregation had been attempted by-the carriers here. On the contrary, it was undisputed that the line haul carload rate comprehended receipt and delivery on team tracks or at freight sheds.
The Commission conceded the right of the carrier to charge for any terminal service that was accessorial. But it was held that an additional charge was not justified if additional service was not in fact rendered.
2. Nor do we understand that the Commission ruled that the receipt and delivery of goods at plants-located upon spurs or side-tracks could not, in any circumstances, be regarded as a distinct service for which separate compensation might be demanded. Cases of an interior movement of. plant traffic to and from various parts of the establishment, and of deliveries through a system of interior switching tracks constructed as plant facilities, were expressly distinguished by the Commission (18 I. C. C. pp. 313, 314); and it is apparent that the ruling of the Commission would not apply in any case where by reason of the location and extent of the spur tracks and the character of the movement the facts were essentially different from those upon which the decision was based. (Interstate Commerce Commission v. Stickney, 215 U. S. 98, 105.)
3. On the other hand, it cannot be maintained that the delivery and receipt of goods on industrial spur tracks within the switching limits in a city is necessarily an added service for which the carrier is entitled to make, or should make, a charge additional to the line-haul rate to *311or from that city, when the-line-haul rate embraces a receiving and delivering service for which the spur-track service is a substitute. It is said that carriers are bound to carry only to or from their terminal stations. But when industrial spur tracks have been established within the carrier’s switching limits, within which also various team tracks are located, these spurs may in fact constitute an essential part of the carrier’s terminal system. It was stated by the Commission that carriers throughout the country treat industry spurs of the kind here in question ‘as portions of their terminals, making no extra charge for service thereto when the carrier receives the benefit of the line haul out or in.’ It was added that while this general statement covered perhaps ten thousand cities and towns in the United States, the. carriers before the Commission could name only three exceptions, to wit,. the cities of Los Angeles, San Francisco and San Diego. But, laying the generalization on one side, it is plain .that the question whether or not there is at any point an additional service in connection with industrial spur tracks upon which to base an extra charge-, or whether there is merely a substituted service which is substantially a like service to that included in the line-haul rate and not received, is a question of fact to be determined according to the actual conditions of operation.
Such a question is manifestly one upon which it is the province of the Commission to pass:
4. We must therefore take the findings of the Commission in the present case as to the character and manner of use of.the industrial spurs in Los Angeles — that they constituted part of 'the carrier’s terminals and that under the condition's there existing, the receipt and delivery of goods on these spurs was a like service as compared with the receipt and delivery of goods at team tracks and freight sheds — as conclusions of fact. Assuming that they were based upon evidence, they are not open to review. Balti*312more & Ohio R. R. Co. v. Pitcairn Coal Co., 215 U. S. 481, 495; Interstate Commerce Commission v. D., L. & W. R. R. Co., 220 U. S. 235, 251; Interstate Commerce Commission v. Union Pacific R. R. Co., 222 U. S. 541, 547, 548; Interstate Commerce Commission v. Louisville & Nashville R. R. Co., 227 U. S. 88, 92; Atchison, Topeka & Santa Fe Rwy. Co. v. United States, 232 U. S. 199, 221.
In this view, we find no ground for holding the order of the Commission to be invalid. It is not denied that the complaining shippers and these carriers, were heard before the Commission and that evidence disclosing the terminal situation.in Los Angeles, and the nature and use of the various tracks, within the switching limits, was presented; and it' cannot be doubted that the case demanded an appreciation of a variety of details, or minor facts, in order that the ultimate questions of fact could be determined. It is said that, it was established by undisputed evidence that the team tracks and freight sheds provided by the carriers were fully adequate for all carload freight. Putting aside the denial by the Commission of this allegation, it is evident that the question was not simply as to such adequacy, but as to' the .actual use of the various tracks, the services thereon relatively considered, and whether there was really an extra service in the circumstances shown. Again, it is said that the Commission did not find the switching charge in itself, that is, taken separately, to be unreasonable, but the inquiry was whether in view of the conditions of the distribution of the carload freight through a large area there was in fact, such a similarity of moyement as to negative the basis for a separate charge. It is further urged that while the contracts for the construction of these spurs did not fix the charge, it was proved by undisputed evidence that at the time these contracts were made the shippers consented to a special charge, if freight were received and delivered thereon, and that the charge in question had been generally *313maintained. The service, however, was performed subject to the law of the land requiring that the carrier’s charges should not be unreasonable or .unjustly discriminatory. (See Louisville & Nashville R. R. Co. v. Mottley, 219 U. S. 467, 482; Phila., Balt. & Wash. R. R. Co. v. Schubert, 224 U. S. 603, 613, 614.) If it became apparent that the shippers were subjected to an arbitrary and unwarranted exaction, they were in no way estopped from bringing the matter before the body created by law to deal with such questions and from securing its order directing the carriers to stop the objectionable practise.
But it is contended that the finding of the Commission is opposed to the admitted physical facts, and reference is made to the transportation to and from industrial plants located from 1-5 of a mile to 7 miles from the main track of the carrier. We find no such fundamental unsoundness in the Commission’s conclusions. It appeared, as already stated, that the carrier had designated certain territory as within its switching or yard limits in Los Angeles extending for 6 or 7 miles and 'including numerous tracks, main' lines, branch lines, industry tracks, team tracks, freight-shed tracks and various structures.’ It does not appear-how many industries were within a short distance or to how many the statement as to the greatest distance above-mentioned applied.- The carrier did not fix a charge according to the comparative service in the case of these various industrial plants. ' It made the same switching charge whether the distance was 200 feet or 7 miles, that is, it dealt with the situation upon an average basis making the same charge for all this switching in a given area which constituted its terminal district.' It was the service within these switching limits, that the Commission was considering. Manifestly it was permissible to establish such a district, and taking the tdam-track and freight-shed service in that area, and the average spur-track service, the Commission reached the conclusion set forth. 'It is said. *314that the finding of the Commission as to the comparative cost of the service was not affirmative, but was merely a negative statement to the effect that the Commission was unable to find that the cost of spur-track delivery was more expensive to the carrier. While this form of expression was used at one place in the Commission’s report, at another the service in question was described as one which involved ‘no greater expense than would team-track delivery’ and we cannot but regard this as the Commission’s finding upon the evidence. It is then insisted that the contrary of-, this finding is self-evident, but the facts with respect to the movement of freight in a great terminal district are by no means so' simple that the deliberate judgment of the Commission can be regarded as contradicting the obvious.
The argument for- the petitioners necessarily invites' the court to substitute its judgment for-that of the Commission upon matters of fact within the Commission’s province. This is not the function of the court. We cannot regard the Act to Regulate Commerce as justifying an increased or extra charge for a substantially similar service and upon the case made it cannot be said that the Commission has overstepped its authority in forbidding the charge in question as one- which was unjustly discriminatory.
In our opinion the Commerce Court erred in denying the Government’s motion to dismiss and in granting the petitioners’ motion for injunction. The order of the Commerce Court is therefore reversed and the cause is' remanded to the District Court of the United States for the Southern District of California, southern division, with instructions to dismiss the bill. Act of October 22, 1913, c. 32; Stat. 1913, p. 221.
It is so ordered.
The order is as follows:
“This case being at issue on complaint and answer on file, and having been duly heard and submitted by the parties, and full investigation of the matters and things involved having been had, and.the commission having, on the date hereof, made and filed a report containing its findings of fact and conclusions thereon, which said report is hereby referred to and made a part hereof, and having found that the present charge of $2.50 per car exacted by the several defendants for delivering *303and receiving carload freight to and from industries located upon spurs and sidetracks within their respective switching limits at Los Angeles, Cal., when such carload freight is moving in interstate commerce incidentally to a system-line haul, is in violation of the act to regulate commerce:
“It is ordered, That said defendants be, and they are hereby, notified and required to cease and desist, on or before the 1st day of July, 1910, and for a period of not less than two years thereafter abstain, from exacting their present charge of $2.50 per car for delivering and receiving carload freight to and from industries located upon spurs and sidetracks within their respective switching limits in the said city of Los Angeles, Cal., when such carload freight is moving in interstate commerce incidentally to a system-line haul.
“ It is further ordered, That said defendants be, and they are hereby, notified and required to cease and desist, on or before the 1st day of July, 1910, and for a period of not less than two years thereafter abstain, from exacting any charge whatever, other than the charge for transportation from points of origin to destination, for delivering or receiving carload freight to or from industries located upon spurs or sidetracks within their respective switching limits in the said city of Los Angeles, Cal, when such carload freight is moving in interstate commerce incidentally to a system-line haul.”
The standard form of the Southern Pacific Company provides as follows:
“1. Undersigned (shipper) will pay cost of constructing above-described track (rails, splices, bolts, switches, frogs, switch stands, and connections to be furnished by and at the cost'of Southern Pacific Company), whether such cost may be more or less than amount of foregoing approximate estimate.
“2. Said track shall be under full control of Southern Pacific Company, and may be used at discretion of said company for shipments or delivery of any freight, but the business of the undersigned shall always have preference.
“3. All material in- said track furnished at expense of Southern Pacific Company,- whether in original construction or by any way of replacements or repairs, shall be and remain exclusive property of Southern Pacific Company, and said Southern Pacific Company shall keep said track in repair.
“4. In case said' track shall not be used by undersigned for period of one year, said Southern Pacific Company may, at its option, remove said track.
“ 5. All goods shipped from or to said track by rail, routing of which is controlled, or may be reasonably held to be controlled, by or through undersigned, shall, when forwarded, be over such railroads as may be selected by Southern Pacific Company, provided rate of charge shall be as low as that from or to point in question by any other rail route.”
The Sante Fe contract contains this provision:
“The title to said track, and to all the rails, ties, bolts, switches, fastenings, and fixtures connected therewith, and to all other property which may be furnished by the railway company in the maintenance of said track, shall at all times be and remain in said railway company,, and said railway company may use the same for other purposes than the delivery of freight to or the receipt of freight from the second *307party, provided that such use shall inconvenience the business of the second party as little as possible consistent therewith; and at any time after the termination of this contract or the obligation of the railway company, as herein provided, to maintain such track, the railway company shall have the right to remove said track and every -part thereof.”