In the case of United States v. Coronado Beach Company (1920), the U.S Supreme Court ruled in favor of the government, asserting its right to public lands under navigable waters. The dispute arose when Coronado Beach Company claimed ownership over a portion of San Diego Bay based on an 1847 Mexican land grant that predated California's statehood and subsequent cession to America following the Mexican-American War. However, upon review, it was determined that this particular parcel had not been included in any previous grants or patents issued by either Mexico or Spain before it became part of American territory. Therefore, according to common law principles and established precedent regarding sovereignty rights over navigable waters and submerged lands beneath them - which typically vest with states upon their admission into Union unless expressly reserved by federal government - such areas were deemed held in trust for public use irrespective of private claims unless explicitly conveyed otherwise through legislation.

In the dissenting opinion for United States v. Coronado Beach Company, it was argued that the majority's decision to uphold a lower court ruling in favor of the U.S. government was incorrect. The dissenters believed that there were significant errors made by both courts in interpreting and applying relevant laws and precedents related to land ownership rights along California's coastlines. They contended that these mistakes led to an unjust outcome where private property rights were unfairly disregarded or diminished without proper legal justification or compensation provided to affected parties like Coronado Beach Company. Furthermore, they expressed concerns about potential negative implications this case could have on future disputes involving similar issues if left uncorrected.