$NBRI..Mining is a slow process and this investment is about to pay off!>>>>>North Bay Resources Inc. (NBRI) to Advance Pre-Production Planning at Ruby Gold Project With 3-D Digital Mapping Survey
SKIPPACK, PA--(Marketwire - Jun 6, 2011) - North Bay Resources Inc. (OTCBB: NBRI) ("North Bay" or the "Company") is pleased to announce that the Company is preparing to advance pre-production planning at the Ruby Gold Project with a comprehensive state-of-the-art digital mapping survey of the geological structures containing the gold deposits at the Ruby Mine.
The Company believes that the underground placer gold at the Ruby Mine is deposited in pools or local depressions on the beds of ancient rivers that crossed the Ruby Mine property millions of years ago, and that the location of the pools can be predicted based on well-established principles of river morphology. Prediction would require recording the relative elevation of the riverbed at high resolution. This will be done by using laser instruments to survey the bottom of the riverbed exposed during previous mining operations. These instruments are accurate to within fractions of a centimeter, and every survey point is recorded digitally in three-dimensional space. The data is then compiled into a database using state-of-the-art software specifically designed for the mining industry, resulting in the rendering of a three-dimensional map of the buried river channels.
To establish the procedures for recording this information and creating digital 3-D maps of the bedrock surface, the Company will resurvey the Lawry Shaft and other workings at high resolution. These procedures will also form the basis for day-to-day mine mapping when production begins. The detailed survey information coupled with careful geologic mapping should provide a detailed picture of the drainage system in the Lawry workings and how and where gold was deposited within it. The study of the Lawry workings will also provide the basis for understanding the river sediments in the remainder of the mine as it is opened up.
It should also be noted that gold mining requires management of huge amounts of data, such as where rock is removed, how much, where it is transported, where it enters the mill circuit, and the amount of gold recovered from each volume of rock mined. Where the rock is removed and how much gold is recovered from the rock must be recorded on maps in digital form on a daily basis. Other data that is recorded in the same computer software are drill hole locations and assays, geophysical data, day-to-day sample locations and results, and other information. In addition, duplicate maps record survey data and geologic mapping, both of which are required to guide where the ore-bearing zones are and where rock is to be mined, at times weeks, months, or years in advance.
The digital mapping survey will be led by Mr. C. Gary Clifton, P.Geo., the Company's consulting geologist for the Ruby Gold Project. Mr. Clifton is a Qualified Person as defined by National Instrument 43-101, and has reviewed this press release for technical accuracy.
About The Ruby Gold Project
The Ruby Mine, a/k/a the Ruby Gold Project, is a fully-permitted underground placer and lode mine located near Downieville in Sierra County, California that is known to have produced over 250,000 ounces of gold since the 1850's, and which is considered to be part of the northern extension of the historic Mother Lode system. The Ruby Property covers approximately 1,755 acres, consisting of the subsurface mineral rights of two patented claims totaling approximately 435 acres and 30 unpatented claims containing approximately 1,320 acres. The equipment, fixed assets, and infrastructure in place have been valued at an estimated $3.5 million, and include a 1,000 yard per day placer wash plant, 50-ton per day quartz mill, 6,000 feet of tracked haulage, and related support equipment needed for underground mining operations. The property also features an excellent system of roads, is accessible via paved highway from Reno or Sacramento, has abundant water and timber available for mining purposes, and has PG&E power available on-site. For further information about the Ruby Mine, please visit the Ruby page on the North Bay website at http://www.northbayresources.com/ruby/.
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