The United States Supreme Court case of United States v. Southern Pacific Railroad Company in 1892 revolved around a dispute over land grants. The U.S. government had previously granted certain lands to the Southern Pacific Railroad Company for the construction of a railroad line from San Francisco to Los Angeles, California. However, it was later discovered that some parts of these lands were mineral-rich and not suitable for agriculture as initially thought when they were given away under an act which only allowed granting agricultural land for railway purposes. The U.S government sought to reclaim these mineral-rich lands arguing that they should have never been included in the grant because their non-agricultural nature violated the terms of the Act under which they were granted. The Supreme Court ruled against this argument stating that once Congress has made such a grant, it cannot be revoked or modified retrospectively based on subsequent discoveries about its nature unless there is clear evidence showing fraud or mistake at time of making original grant by Congress itself.

The dissenting opinion in the United States v. Southern Pacific Railroad Company case argued that the majority's interpretation of the law was incorrect and overly broad. The dissenters believed that Congress did not intend to grant such extensive rights to railroad companies when it passed legislation allowing them to build on public lands. They contended that these rights were meant only for constructing railroads, not for other commercial uses like mining or timber harvesting as claimed by Southern Pacific Railroad Company. Furthermore, they disagreed with the majority's view about property ownership, arguing instead that land granted by Congress remained under federal control until a patent was issued transferring title to the railroad company. Thus, according to this viewpoint, any taxes levied on those lands before issuing such patents should be payable by these corporations.