SOURCE: Alto Group Holdings, Inc.

Alto Group Holdings, Inc.

November 11, 2010 09:29 ET

Alto Group Holdings Announces Description of Near Term Production Gold Deposits and Economic Potential of the La Cienega Project in Sonora, Mexico

NEW YORK, NY--(Marketwire - November 11, 2010) - Alto Group Holdings, Inc. (OTCBB: ALTO) ("Alto Group" or the "Company"), an innovative mining and commodities trade company headquartered in New York, announces description of gold deposits and economic potential of the La Cienega project in Sonora, Mexico.

Placer gold is widely distributed in the alluvial areas as small to very coarse nuggets weighing from 0.1 gm to hundreds and occasionally thousands of grams. (multi kilo size) Previous studies (Krantz et aI., 1994) identified four types of placer gold detrital placers, and re concentrations in recent arroyos.

The Tertiary gravels are host to erratic high and low concentrations of placer gold being economic and viable. Nuggets and gold-bearing quartz veins occur on the tops of hills composed of Tertiary conglomeratic material and in drainages cutting these deposits. Mapping and air photo interpretations indicate that more than 90% of the placer workings are spatially associated with the Tertiary gravel deposits. The ultimate bedrock lode source of the gold in the gravels is either at higher, now eroded elevations, or laterally distant from the property. Blanket placers cover large areas and result from the downward concentration of gold through, erosion and transport of rock detritus. This deposit type is displayed in the San Rafael concession area where the "gambusinos" have extensively bladed the tops and sides of the Tertiary gravel terraces, exploiting these blanket deposits. Residual or detrital placers occur near or directly above their source and are localized. The host material shows mostly bedrock lithology and the fragments are angular. A shallow and narrow shear zone assayed 0.46 oz Au/ton. The overlying locally derived angular gravel assayed 170 ppb Au and nearby oxidized bedrock assayed 3590 ppb Au. Small presently active arroyos are sites of placer gold that is being re-concentrated from other placer deposits by the present erosional regime. Although limited in extent these deposits are usually of higher grade.

Economic Potential

The upper portion of the deposit has an average thickness of 3 meters of unconsolidated gravel overlying a "Caliche" surface. The initial test work that was done in mid 2008 was designed to evaluate portions of the unconsolidated material, including areas of unconsolidated material within the conglomerates. At that time it was estimated that the older conglomerate area has a surface of 250 hectares (500 acres) or a potential volume of 32,000,000 cubic meters (approx. 10,000,00 cubic yards). Assuming a cut-off of 2 grams per cubic meter, a revised gold price of $1000.00 per once, and an 18% net profit, the placer has a net potential value of approximately 120 million dollars. The Tertiary conglomerate area has a surface area of 100 hectares (approx. 250 acres). Using the same assumptions as above, it has a net potential value of 50 million dollars. The recent alluvial area has a surface of 120 hectares (265 acres) and a net potential value of 60 million dollars. The total potential net value of the currently known placer resource of the upper meters of the area is approximately 60 million dollars (250 @ $750/once).


The La Cienega placer area is in an extremely favorable geological setting with a rich history of past small scale hand mining production and is relatively accessible. The hard rock or lode resource has not been estimated because drilling has not tested the ore grade, and depth and lateral extent of mineralization. Further exploration of the placer and of the lode deposits will provide a more realistic estimate of the entire project value. Water for processing is not obvious but it is abundant and will need development. The village of La Cienega has an artesian well which over flows into our leased camp area and this water can also be impounded and utilized to our benefit. Some existing wells may be utilized from area ranchers for further testing and final production.

Please visit the company website for details on projects at

Notice Regarding Forward-Looking Statements

This news release contains "forward-looking statements" as that term is defined in Section 27A of the United States Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Statements in this press release which are not purely historical are forward-looking statements and include any statements regarding beliefs, plans, expectations or intentions regarding the future. Such forward-looking statements include, among other things, the development, costs and results of our exploration program at our properties and any anticipated future production. Actual results could differ from those projected in any forward-looking statements due to numerous factors. Such factors include, among others, the inherent uncertainties associated with petroleum exploration and development stage exploration companies. These forward-looking statements are made as of the date of this news release, and we assume no obligation to update the forward-looking statements, or to update the reasons why actual results could differ from those projected in the forward-looking statements. Although we believe that the beliefs, plans, expectations and intentions contained in this press release are reasonable, there can be no assurance that such beliefs, plans, expectations or intentions will prove to be accurate. Investors should consult all of the information set forth herein and should also refer to the risk factors disclosure outlined in our annual report on Form 10-KSB for the most recent fiscal year, our quarterly reports on Form 10-QSB and other periodic reports filed from time-to-time with the Securities and Exchange Commission.

Alto Group Holdings, Inc.
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Mark Daniel Klok
President and CEO

Contact Information

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