{
  "id": "spanish-mining-law-in-the-american-west",
  "type": "entity",
  "name": "Spanish mining law in the American West: the Ordenanzas de Minería of 1783 translated for United States courts, 1851-1859",
  "summary": "After 1848 the United States acquired territory whose mines and land titles had been governed by Spanish and Mexican law, and American lawyers put that law into English so their own courts could apply it. Two compilations printed in New York in 1851 and San Francisco in 1859 carry the mining ordinances of New Spain of 1783 - crown ownership, grant to any subject of whatever rank, forfeiture for failing to work - along with the coerced Indian labour written into the same code.",
  "locale": "en",
  "tags": [
    "new-spain",
    "mexico",
    "mining",
    "law",
    "united-states",
    "california",
    "texas",
    "legal-history",
    "spanish-empire",
    "eighteenth-century"
  ],
  "relations": [
    {
      "rel": "related",
      "target": "real-tribunal-general-de-mineria"
    },
    {
      "rel": "related",
      "target": "gamboa-comentarios-ordenanzas-de-minas-1761"
    },
    {
      "rel": "related",
      "target": "recopilacion-de-leyes-de-indias"
    },
    {
      "rel": "related",
      "target": "real-seminario-de-mineria"
    },
    {
      "rel": "related",
      "target": "mita"
    },
    {
      "rel": "related",
      "target": "ganancial-property-in-united-states-law"
    },
    {
      "rel": "related",
      "target": "community-acequias-and-the-pueblo-water-right"
    },
    {
      "rel": "related",
      "target": "real-instruccion-de-tierras-1754"
    },
    {
      "rel": "related",
      "target": "mesta-de-la-nueva-espana"
    },
    {
      "rel": "related",
      "target": "medidas-de-tierras-y-aguas-de-nueva-espana"
    },
    {
      "rel": "related",
      "target": "spanish-and-mexican-land-titles-in-united-states-law"
    },
    {
      "rel": "related",
      "target": "las-siete-partidas"
    },
    {
      "rel": "related",
      "target": "pastos-montes-y-aguas-comunes"
    },
    {
      "rel": "related",
      "target": "socavones-y-desague-de-las-minas-de-nueva-espana"
    },
    {
      "rel": "related",
      "target": "pilares-y-ademes-de-las-minas-de-nueva-espana"
    }
  ],
  "questions": [
    "Did Spanish law survive in the United States after 1848?",
    "What were the Ordenanzas de Minería of 1783?",
    "Where does the American mining claim come from?",
    "Why did California lawyers translate Spanish mining law?",
    "Did Spanish mining law let anyone claim a mine?",
    "What did the 1783 mining ordinances say about Indian labour?"
  ],
  "claims": [
    {
      "id": "c1",
      "text": "The reception is documented by two printed books whose title pages state the purpose. The first reads \"A COMPILATION OF SPANISH AND MEXICAN LAW, IN RELATION TO MINES, AND TITLES TO REAL ESTATE, IN FORCE IN CALIFORNIA, TEXAS AND NEW MEXICO; AND IN THE TERRITORIES ACQUIRED UNDER THE LOUISIANA AND FLORIDA TREATIES, WHEN ANNEXED TO THE UNITED STATES\", by John A. Rockwell, Counsellor at Law, New-York, John S. Voorhies, 1851, and announces a translation of the mining ordinances of New Spain, of Gamboa's mining ordinances, and of the laws on gold, silver and quicksilver in the Novisima Recopilacion and the Recopilacion de las Indias. The second reads \"A COLLECTION OF MINING LAWS OF SPAIN AND MEXICO\", compiled and translated by H. W. Halleck, San Francisco, O'Meara & Painter, 1859.",
      "sources": [
        "rockwell-1851-spanish-and-mexican-law",
        "halleck-1859-mining-laws-of-spain-and-mexico"
      ],
      "confidence": 0.95
    },
    {
      "id": "c2",
      "text": "Halleck states the motive in his first paragraph, and it is jurisdictional rather than antiquarian: the code of mining laws established by Spain and adopted by Mexico and other Spanish-American States is \"in itself, well worthy of attention, as a distinct and peculiar branch of jurisprudence\", and in the United States, \"from our recent acquisitions of territory containing large Mining interests, which territory has heretofore been governed by Spanish and Mexican law, the study of this code has become a matter of special interest, not only to the legal profession, but also to statesmen and legislators\". The volume was printed in San Francisco a decade into the gold rush and dated April 1859.",
      "sources": [
        "halleck-1859-mining-laws-of-spain-and-mexico"
      ],
      "confidence": 0.9
    },
    {
      "id": "c3",
      "text": "The same preface supplies the periodisation of the body of law being received. Part I holds the laws prior to 1584, chief among them the Ordinances of 18 March 1563, \"usually denominated 'The Old Code'\", explained by Lagunez, Solorzano, Escalona, Cardinal de Luca and Gamboa. Part II holds the Ordinances of 22 August 1584, \"commonly called 'The New Code'\", which furnish the text for Gamboa's commentaries of 1761. Part III holds \"the Ordinances of May 22d, 1783, formed especially for the Mining of New Spain, but subsequently enforced in other Spanish-American countries\", commented on by Velasquez de Leon. A code written for Mexico had by then become the mining law of much of Spanish America.",
      "sources": [
        "halleck-1859-mining-laws-of-spain-and-mexico"
      ],
      "confidence": 0.85
    },
    {
      "id": "c4",
      "text": "The doctrinal core of the 1783 ordinances, in the English these books put before American courts, is three sentences long. \"THE mines are the property of my Royal Crown, as well by their nature and origin, as by their re-union\". \"Without separating them from my Royal patrimony, I grant them to my subjects in property and possession, in such manner that they may sell, exchange, (pass by will, either in the way of inheritance or legacy), or in any other manner, dispose of all their property in them\". And the grant is conditional: the grantee shall pay the royal proportion of metal, and \"shall carry on their operations in the mines subject to the provisions of these Ordinances, on failure of which, at any time, the mines of persons so making default shall be considered as forfeited, and may be granted to any person who shall denounce them accordingly\". Ownership follows working, and lapses without it.",
      "sources": [
        "rockwell-1851-spanish-and-mexican-law"
      ],
      "confidence": 0.9
    },
    {
      "id": "c5",
      "text": "The acquisition procedure printed in Chapter VI is a public registry system with fixed rewards and fixed deadlines. Discoverers of one or more mineral mountains \"wherein no mine or shaft has been opened before\" acquire three portions (pertenencias) on the principal vein, together or separate, where it best pleases them; the discoverer of a new vein in a mountain already worked elsewhere may hold two; a man who proposes for a new mine in a vein already known and worked in part \"is not to be considered a discoverer\". The claimant presents a written statement to the Deputation of Miners naming himself, his associates, his birthplace, his habitation, profession and employment and the distinguishing features of the ground; the hour of his appearance is entered in a register; and notices are affixed \"to the doors of the church, the government-houses, and other public buildings of the town, for the sake of general notoriety\". Within ninety days he must sink a pit a yard and a half across and ten varas deep, which a deputy inspects in person with the Mining Professor before possession is given.",
      "sources": [
        "rockwell-1851-spanish-and-mexican-law"
      ],
      "confidence": 0.9
    },
    {
      "id": "c6",
      "text": "Failure to perform reopens the ground to anyone, and the code says so in terms that make the claim an obligation rather than an asset. If the denouncer does not make or complete the shaft as prescribed, nor take possession within the sixty days, \"he loses his right, and any other person has the power of denouncing the mine\", with an extension available from the Territorial Deputation on proof of a real and serious obstacle. If a former mine-owner appears after the three public proclamations, \"he shall not be heard as to the possession, but only as to his right in the property\", and on establishing it must reimburse the denouncer's expenses unless the denouncer acted fraudulently. Anyone may denounce a mine as forfeited for non-observance of the Ordinances \"provided he can lawfully establish any such cause of forfeiture\", and the displaced possessor is paid, on a surveyors' valuation, for the works and machines he leaves behind.",
      "sources": [
        "rockwell-1851-spanish-and-mexican-law"
      ],
      "confidence": 0.9
    },
    {
      "id": "c7",
      "text": "Who was admitted is the provision least like the English law it was set beside. Chapter VII opens: \"To all the subjects of my dominions, both in Spain and the Indies, of whatever rank or condition they may be, I grant the mines of every species of metal under the conditions already stated\". The bar falls on foreigners, who may not acquire or work mines as their own property \"unless they be naturalized or tolerated therein by my express Royal license\", and on the regular religious orders of both sexes, who are forbidden to denounce or acquire mines for themselves, their convents or their communities, secular ecclesiastics on whom mines devolve by inheritance being obliged to sell or place them in lay hands within six months.",
      "sources": [
        "rockwell-1851-spanish-and-mexican-law"
      ],
      "confidence": 0.9
    },
    {
      "id": "c8",
      "text": "The cost is inside the same code, on the same pages as the protections, and both belong in any honest account of it. The chapter on the workmen requires that each workman keep in his own possession a paper marked with the parts of his monthly salary that have fallen due and everything received on account, written by the rayador or paymaster, \"so that each workman may adjust and understand his own account\"; that tasks be assigned with attention to the hardness of the ground and \"proceeding with the greatest justice and equity in moderating the said tasks, in allowing good pay to those employed in such tasks\"; and that a complaint of grievance be redressed by the Mining Deputation by verbal decree or by judicial process. Section IX of the same chapter then orders that no supplies be afforded \"to the Indians of allotment (repartimiento), in order that immediately on concluding their tasks they may return to their villages and habitations, and others be employed in their stead as the law requires\", free Indians alone being allowed advances of up to five dollars. The compiler's own footnote defines the term: \"Indios de repartimiento, the Indians who are lotted in division from time to time, and sent to work in the mines; in opposition to free Indians\". A wage record auditable by the worker and a rotating draft of conscripted Indian labour are provisions of one ordinance.",
      "sources": [
        "rockwell-1851-spanish-and-mexican-law"
      ],
      "confidence": 0.9
    },
    {
      "id": "c9",
      "text": "The books were made for litigation, and the counterpoint to any account of this as cultural homage is printed in the preface of the earlier one. Rockwell states his object as furnishing the Spanish and Mexican laws on mines \"and the laws governing the titles to land in the states and territories of the United States which were, originally, a portion of the Spanish or Mexican territories\", and says it \"is intended to aid in the investigation and decision of questions affecting the titles to land, and in relation to mines, arising under Spanish grants within the territory ceded to the United States under the Louisiana and Florida treaties, and especially, titles delivered under Spanish or Mexican law in Texas, California and New Mexico\". He binds in with it a digest of the English common law of mines, noting that the common law \"has been adopted as the law in California\". The same volumes that preserved the Spanish doctrine were the instruments by which the claims of Spanish and Mexican grantees were tested, and often defeated, in American courts.",
      "sources": [
        "rockwell-1851-spanish-and-mexican-law"
      ],
      "confidence": 0.85
    },
    {
      "id": "c10",
      "text": "Both compilers state limits that bound what can be read out of their pages, and those limits are the reason no claim here is put at the confidence a Spanish original would carry. Halleck writes that his translations \"differ in some particulars from those of Mr. Heathfield and in many more from those of Mr. Thompson\", that he took great pains with his own version, and that \"it is very possible, that while avoiding some of the errors in former translations, he may have committed others equally glaring\"; he has given \"an almost literal translation\", sacrificing style, leaving untranslatable technical words in italics and explaining them from Gamboa's glossary and the law dictionary of Escriche. He also declares his collection incomplete for the period after 1783 and again after independence, states that he could not obtain the Mexican laws since 1853 \"in an authentic form\", and that he never saw a copy of the old Peruvian code Gamboa cites.",
      "sources": [
        "halleck-1859-mining-laws-of-spain-and-mexico"
      ],
      "confidence": 0.9
    }
  ],
  "takeaways": [],
  "faqs": [],
  "evidence_tier": "primary",
  "evidence": {
    "level": "industry_observation",
    "source_types": [
      "paper"
    ]
  },
  "moat_flag": false,
  "winning_edge": "English-language writing on the American West treats the mining claim as a frontier invention and the 1866 and 1872 federal mining acts as codified miners' custom, with Spanish law mentioned, when at all, as background colour. The two volumes read here are the documentary link that account skips: American lawyers in New York and San Francisco translating and printing the Ordenanzas de Mineria of 1783 for American courts, before those federal statutes existed, and stating in their own prefaces that they did it because the territory had \"heretofore been governed by Spanish and Mexican law\". From their pages this object quotes the rules themselves - the crown's grant to any subject \"of whatever rank or condition\", the three pertenencias of the discoverer, the register and the notices on the church door, the ninety-day pit, the sixty days to possession, and forfeiture to any denouncer for failure to work - rather than characterising them. It puts the cost on the record from the same code, quoting the article that sends the Indians of repartimiento back to their villages and the compiler's footnote defining them against free Indians, alongside the article giving each workman a written account of his own wages. And it names the motive: the preface that says these translations were made to decide questions of title arising under Spanish grants in ceded territory, which is to say they were tools of the litigation that dispossessed many of the grantees. Halleck's own warning that he may have committed errors \"equally glaring\" as his predecessors' is quoted rather than hidden, and bounds every English wording given here.",
  "confidence": 0.85,
  "last_verified": "2026-08-10",
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    "name": "Spanish mining law in the American West: the Ordenanzas de Minería of 1783 translated for United States courts, 1851-1859",
    "description": "After 1848 the United States acquired territory whose mines and land titles had been governed by Spanish and Mexican law, and American lawyers put that law into English so their own courts could apply it. Two compilations printed in New York in 1851 and San Francisco in 1859 carry the mining ordinances of New Spain of 1783 - crown ownership, grant to any subject of whatever rank, forfeiture for failing to work - along with the coerced Indian labour written into the same code.",
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        "name": "A Compilation of Spanish and Mexican Law, in Relation to Mines, and Titles to Real Estate, in Force in California, Texas and New Mexico; and in the Territories Acquired under the Louisiana and Florida Treaties, when Annexed to the United States. Volume I",
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        "@type": "CreativeWork",
        "name": "A Collection of Mining Laws of Spain and Mexico",
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    "headline": "Spanish mining law in the American West: the Ordenanzas de Minería of 1783 translated for United States courts, 1851-1859"
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