Unnamed prospects East of North Peak, North Peak (North Sisters Peak), Tres Hermanas Mining District, Tres Hermanas Mountains, Luna County, New Mexico, USA i
Regional Level Types
Unnamed prospects East of North Peak Peak
North Peak (North Sisters Peak) Outcrop
Tres Hermanas Mining District Mining District
Tres Hermanas Mountains Mountain Range
Luna County Shaft (Reclaimed)
New Mexico State
USA Country

Regional Level Types
Unnamed prospects East of North Peak	Peak
North Peak (North Sisters Peak)	Outcrop
Tres Hermanas Mining District	Mining District
Tres Hermanas Mountains	Mountain Range
Luna County	Shaft (Reclaimed)
New Mexico	State
USA	Country

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Latitude & Longitude (WGS84):

31° 55' 30'' North , 107° 42' 45'' West

Latitude & Longitude (decimal):

G#: 9temsgy0g

Type:

Köppen climate type:

BSk : Cold semi-arid (steppe) climate

Nearest Settlements:

Place	Population	Distance
Columbus	1,625 (2017)	12.8km
Puerto Palomas	5,659 (2015)	18.0km
Sunshine	420 (2011)	24.0km
La Hacienda	725 (2017)	31.2km
Pulpotio Bareas	120 (2017)	33.0km

Nearest Clubs:
Local clubs are the best way to get access to collecting localities

Club	Location	Distance
Deming Gem & Mineral Society	Deming, New Mexico	38km

Mindat Locality ID:

34518

Long-form identifier:

mindat:1:2:34518:2

GUID (UUID V4):

Pb occurrences/prospects located about 0.8 km (0.5 mile) NE of North Peak (coordinates of record).

NOTE: The geographic coordinates presented are taken from the topo map at a point about halfway between the group of shafts and other prospects described in the reference, as reflected on the topo map.

A few prospects are located in an arroyo leading East from North Sister Peak. This peak is defined as the northwesternmost of the group of three peaks for which the Tres Hermanas Mountains are named. The prospects are located near the center of the S1/2 sec. 25, T. 27 S., R. 9 W. The area can be reached by a dirt road branching off to the west from State Highway 11 approximately 51/2 miles north of Columbus. The dirt road leads west to the base of South Sister Peak, and thence northward to the prospects; the total distance from the highway is approximately 4 miles.

The prospects are located in a narrow belt of east-dipping Permian(?) limestones bounded on the southwest by the Tres Hermanas quartz monzonite stock and on the northeast by intrusive andesite porphyry. The limestones were strongly metamorphosed by both of these intrusions of igneous rock.
The first prospect reached in going up the arroyo to the area is on the north side. Here a short adit was driven in a northerly direction along a faulted contact between andesite porphyry on the west and Permian (?) limestones on the East. Little important mineralization was developed by this excavation; the fault zone contains only moderate amounts of iron and manganese oxides, without detectable amounts of any ore minerals.

Immediately South, on the other side of the arroyo, steeply east-dipping limestones are exposed. One bed within this sequence has been highly silicated by the formation of garnet, epidote, and probably other silicate minerals. This bed contains scattered grains of magnetite and a few cubes of galena.

The several other prospects are located to the west about a quarter of a mile farther up the arroyo. Three closely spaced shafts, one timbered, but all considered unsafe to enter, are located where two smaller arroyos join to form the main channel. Outcrops are poor, but the shafts appear to be located along a northeast-striking contact between intrusive andesite porphyry to the north and east-dipping limestones to the south. The limestones are strongly marbleized and silicated. The shaft dumps contain only a few ore samples; these were highly oxidized specimens containing some cerussite.

Two other prospects are located nearby, one about 500 feet South and another about the same distance southeast from the shafts. The latter consists of several pits made along an east-striking contact between Permian (?) limestone on the north and intrusive andesite on the south. Considerable magnetite has replaced the limestone near this contact. The other prospect is within the andesite and does not offer visible signs of ore mineralization.

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Standard Detailed Gallery Strunz Chemical Elements

Mineral List

4 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

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Alphabetical List Tree Diagram

ⓘ Limestone

ⓘ Quartz-monzonite