Orogrande (Jarilla)
Deposit type & geology
Great Plains Margin alkaline gold-silver mineralization.
Not independently detailed this session — Jarilla Mountains.
Age: Not independently confirmed this session.
Structural geology & terrain
Vein/structure orientation: No single vein system — skarn mineralization along igneous contacts; one unnamed fault with ~3 m of displacement documented
Named controlling structure: Not found — stock contacts are the primary control, not a named fault
Elevation range: 4,190–5,307 ft
Low, isolated desert range, chronic water scarcity — a dedicated pipeline was built in 1907.
High-resolution terrain
~6 m/pixel lidar-derived hillshade (USGS 3DEP) — fine enough to reveal old mine workings, waste-rock piles, trenches, and roads the statewide terrain layer can’t show.
Historical production
~16,500 oz Au estimated / 15,849 oz reported, 1879–1966 (NMBGMR Resource Map 24; Circular 5 separately states “over $375,000 in gold,” roughly consistent). A modern resource estimate of 305,000 metric tons at 1.7 g/t Au has also been cited — a current exploration target figure, not historic production.
Sources: USGS Professional Paper 610 (Koschmann & Bergendahl 1968); NMBGMR Circular 5; NMBGMR Resource Map 24; EMNRD permit OT005MN (from original research pass) researched — see sources
Current status
The only district in this dataset with confirmed current EMNRD permitted activity as of the original research pass (permit OT005MN, modification approved July 2025) — the operator and specific commodity target were not re-confirmed in this completeness-audit pass and should be checked against the live EMNRD permit record. NMBGMR also names Orogrande as one of five NM districts with ongoing recreational panning today (with Jicarilla, White Oaks, Pittsburg, and Hillsboro).
Active within ~12 months
EMNRD permit OT005MN modification approved July 2025 — the only district in this dataset confirmed to have current, active permitted status from the original research pass of this project.
Land ownership & directions
Land ownership for this district was not independently confirmed in this session's research — verify directly before relying on it.
Not independently confirmed this session. Orogrande, NM, Jarilla Mountains, Otero County, off US-54.
See specimen photos (mindat.org) → — this app doesn’t host specimen photos itself; this searches mindat.org’s own mineral-specimen database, which isn’t necessarily specific to this exact district.
This pin is a generalized district/historic-site reference point, not a surveyed claim boundary — routes may cross private or patented inholdings where public access isn’t guaranteed even if a road reaches the site. Backcountry mine areas commonly have unmarked shafts, unstable ground, and no cell service; confirm current access and safety conditions (land manager, county, or landowner) before heading out.
Tailings reprocessing potential
Historic processing method not established this session. This district is currently under active EMNRD-permitted interest (OT005MN), so any tailings here are more likely already accounted for by the current operator than available for independent reprocessing.
This is a documentary heuristic, not assay data.The tier above is inferred from historic production era, processing method, and ore character already cited elsewhere on this page — nobody has sampled or assayed this district’s tailings as part of this research. Actual recoverable gold content can only be established by physical sampling.
Reprocessing tailings is regulated mining. Disturbing or reprocessing historic mill waste requires the same NM Mining Act permitting as new mining (see the regulatory companion guide), regardless of who currently holds the claim or surface rights — and ownership of the tailings material itself is a separate legal question from mineral rights on the underlying land.
Legacy tailings can be hazardous. Pre-modern processing commonly used mercury (amalgamation) or cyanide (heap leach), and can carry elevated arsenic and other heavy metals — not a casual sampling target, and disturbing contaminated material can carry real environmental liability.
Geologist’s read
The most actionable finding of this whole completeness pass: a confirmed, currently-active permit sitting in the same dataset as districts that have been dormant for a century. Worth prioritizing for a deeper follow-up pass given the live permit status.