Who ruled that the line of mean high tide under common law is the same as the line of high water tide under Spanish and Mexican law?

The Supreme Court, in its rulings, has clarified the relationship between common law and the historical context of Spanish and Mexican law regarding property rights associated with tidal areas. Specifically, the concept that the line of mean high tide is equivalent to the line of high water tide under previous Spanish and Mexican law establishes a continuity in legal understanding of land boundaries where tidal influences are concerned.

This ruling is significant because it reinforces the notion that property rights along the coast are influenced by historical legal precedents which were established under different colonial powers. Understanding this relationship is crucial for land surveyors and legal professionals dealing with coastal properties, as it impacts land ownership, development rights, and environmental regulations.

The other entities mentioned have not made determinations regarding the uniformity of these tidal lines in the same definitive manner as the Supreme Court has. While state legislatures can enact laws and other courts can interpret laws, the Supreme Court's interpretation sets binding legal precedent that is crucial for practices in land surveying, particularly in jurisdictions like Texas where these historical influences persist.