Some other fascinating mining operations that came to life within the earlier years of the 1900's, had soon exploded with many producing prospecting claims. One of these areas was commonly known as Larder Lake, Ontario Canada., and was soon thriving with many gold mining projects. Before any mine could be established it had to go through the main phase of prospecting and sometimes even mapping the land. In 1916, it was soon proven that the Larder Lake Area had gold after all, when Jack Costello came upon a rich gold bearing zone. In addition to his very own gold discovery, it was said to be located on claim L1794 in an outcrop of the No. 1 Ore Zone. Jack himself had immediately sold the claim to another mining firm in 1920, and further prospecting of this area was now being examined by the Crown Reserve Mining Company Limited. Almost all prospecting stages became commenced in 1920 by the new claim owners who had all rights to this mining zone. These stages had included the procedures of drilling and trenching, which was aimed towards identifying the extension of the No. 1 vein, and the company had also staked the adjoining grounds to the east in 1921. Company officials would also end up optioning the Costello Claim that same year to the Canadian Associated Goldfields Limited. Further underground explorations by the Crown Reserve Mining Company Limited had once again started on both properties it had owned.
In 1921, the Crown Reserve Mining Company Limited would once again start on a whole new development phase which included constructing the Three Compartment Omega No. 1 shaft to about 1,200 feet below the ground. This whole entire phase was officially open up by 5 underground levels that were said to have been located at 125 foot intervals, and development on all five levels was said to have totalled 8,960 feet of drifting, crosscutting, and raising. Another shaft known as the Omega No.2 shaft was said to have officially been started by 1922, and was reported to have been sunken to a distance of 1,050 feet with at least 10,200 feet of lateral development on seven ore producing levels. It was also stated that the No. 2 Omega shaft had been operated by the Canadian Associate Goldfields Limited. All development on both shafts was officially completed by the two companies in 1928. All production from the companies stock piled ore was said to have been started by the newly developed milling facility. It was also report that this whole entire project was being engineered by the Canadian Associated Goldfields Limited and had started production on April 1027, at a rate of 200 tons per day till it was officially closed in 1929. The production of ore from both mines had totalled 22, 585 tons for a reported recovery of $52,295. Both of these companies were said to have went bankrupt prior to the mine closure in 1929.
The Omega Gold Mine Claim was said to have layed dormant for several years, until 1936, when Omega Gold Mines was formed to further develop this mining zone. All mining operations on the property had began in February 1936, at a rate of 300 tons per day. A new upgrade to the milling facility was completed and had gradually increased the milling rate to 500 tons per day. Almost all development was once again aimed at deepening the No, 1 Omega shaft to about 1,592 feet, and had also decided to sink its very first Winze Shaft from 1,550 feet to 2,000 feet. As development continued the company also decided to construct three newly engineered levels towards their production.
By 1947, the Omega No. 1 shaft was now reaching 72,664 feet of lateral development from all 8 mine levels. All production from the Omega Gold Mine was ceased by the former owners on May 10, 1947, and the Mill had closed on July 12th, 1947. All production from the mine had soon totalled 10, 584 tons of extracted material from 1937 to 1947,with an average grade of 0.158 ounces per a ton of mined rock.
In 1950, Omega Mines Limited had soon transferred all their files to the newly incorporated Lomega Gold Mines Limited. In addition the newly incorporated company was rather on another mission when it had started a single deep hole dtilling program to test the ore zone at depth. This whole that was drilled by the Lomega Gold Mines Limited was reported to have reached a depth of 2,347 feet, and soon had intersected a Graphitic Section. No other development or prospecting was said to have been achieved by this company prior to fully abandoning this mining operation at the end of 1950. It was also reported that no assay results were conducted from the drilling phase that was completed by the Lomega Gold Mines Limited.
By 1974, another promising gold discovery zone was discovered by Davy Lowe on Claim L341811. In addition the rookie prospector had contracted another drilling company known as the Grasset Lake Mines Limited. who had completed a 6 hole drill program on the property in 1975. All files were later transferred to another prospector by the name of RJ Kasner, who eventually had incorporated Lenora Explorations Limited. Mr. R. Kesnar himself had started to further prospect this location by stripping away the overburden of vegetation. Lenora Explorations Ltd was rather considered as a public company that became incorporated on Ontario on October 19, 1979. It acquired nine unpatented mining claims which were located in Hearst and McVittie Township, Larder Lake Mining Division, Ontario.
Further prospection was soon carried out on the West Group of claims that became identified as L20399, L411208, L411209, L341811, L4419377, L313769, and L313770. It was reported that this small scale drilling phase had consisted of 11 holes totalling 3,722 feet of core sample from the ground. In nature the program was mainly designed for testing a gold bearing carbonate rock on claim L341811 and L441494. Gold values were said to have been intersected in two distinct carbonate horizons in ultramafic volcanic. The results of the drillings had indicated that the gold mineralization had a steep plunge to the west and was controlled by block faulting.
Another exploration program was started in 1982, when the Lenora Explorations Limited had started prospecting the Lake Claim on L410317. Further prospect within this location had included trenching, channel sampling, and drilling. Company officials had gathered a total of 111 channel samples which were taken along a length of 277.3 feet and approximately 1,233.8 feet of drilling was also completed. Many holes had soon outlined many interesting gold values which made the company commence more drilling phase on this claim. The results from the 1983 drilling program on the Omega Group of claims were considered to be highly encouraging. It was estimated that the mine still had a reserve of 180,986 tons at a grade of 0.163 ounce per a ton of mined rock. The Omega Mine Crown Pillar was estimated to have also contained another 91,491 tons of reserves with a grade of 0.154 ounce per a ton of rock. No further work was said to have been done on any of the claims prior to the mine becoming abandoned from further explorations.
The Kasner property consists of one unpatented mining claim covering approximately 90 acres in the southeastern part of Mcvittie Township in the Larder Lake Mining Division. The claim is registered as Claim No. IA19096 and is part of the former producing Omega Gold Mine Claims.
The property is readily accessible by Highway No. 66 which passes to the north of the property.
Method of Survey
A grid consisting of north-south Picket Lines was cut over the property at 400 foot Intervals. Chainage Pickets were set up along the Picket Lines at 100 foot spacings. Line cut and chained was 1.2 miles. Lines 4+OOW and 16+OOE were paced, and compassed.Magnetic and Electromagnetic readings were taken along the lines at 100 foot intervals and the results plotted on the accompanying maps.
The results of the Magnetometer Survey conducted on the property are shown on the accompanying :nap. This map has a scale of l inch to 200 feet. A total of 111 readings were recorded using a Scintrex Fluxgate Magnetometer. Headings obtained on the property ranged from a low of 200 to a high of 850 gammas. An anomalous area was defined on line 8E, 3+OOS.
The E.M. Survey was conducted over the same lines cut and chained for the Magnetometer Survey. A total of 90 readings were recorded using a Ronka EM-16 electromagnetic unit.
A northwesterly trending EM Conductor was located on the north-central part of Claim L313770. (Lines O, 1+50E; 43,6+OOE; 83,9+OOE). The trend of this anomaly can be correlated with the magnetic anomalous area.
The cause of this EM anomaly is not known but probably represents a mineralized shear zone. Shear zones are important gold bearing structures in the Larder Lake area and any indications of possible sulphides in such shear zones could be of significant economic importance.
The Electromagnetic Survey outlined a strong conducting zone and when correlated with the magnetic results indicates a mineralized shear zone which warrants more detailed investigation.
A good crossover was obtained on line 8E 10+OOS; the reasons for this crossover is not known but was probably due to the contact between two rock formations.
The Magnetometer and Electromagnetic results depicted an anomalous area in the region of the test pits and shaft area.
1973 Surveying methods on the Kasner and Hurd Claims
A magnetometer survey was completed over the 6 claim kasner and Hurd property in Mcvittie Township in the Larder Lake Mining Division, Ontario. The program was carried out in January, February, March, April, May and June of 1973. The following report and accompanying map describes the results of the survey.
The magnetometer survey detected a weak but well definedanomaly close to the west boundary of the property. The possibility that this anomaly is caused by magnetite developed in a talc-serpentine shear zone warrants investigation since shear zones are important gold bearing structures in the Larder Lake Area.
The magnetometer survey detected a weak but well defined anomaly close to the West boundary of the property. This anomaly possibly represents a talc-serpentine shear zone. A highly anomalous reading (5000 gammas) was recorded at one station near the west end of the base line, however, this is within the old mine plant area and is possibly due to a buried pipe line.
Deep drill Program performed by Lenora Explorations Ltd in 1983
During the field season of 1983, Lenora Explorations Ltd. carried out a program of surface stripping and channel sampling on two of its properties in Mcvittie Township, District of Timiskaming, Larder Lake Mining Division. This report reviews the stripping completed and is included as a supplementary report to the progress report authored by Lenora Explorations consulting geologist, Guy Hinse. The report by Mr. Hinse is entitled "Progress Report on the Mcvittie Township Gold Property of Lenora Explorations Ltd. for the period of Jan. 1st to Dec. 31st, 1983", dated Feb.
The two properties include the Omega No. 17 Zone and the Southwest Group, the latter of which is located 4,000 feet southwest of the Omega Group. Areas to be stripped were recommended by the company consulting geologist Guy Hinse and were intended to further geological knowledge of the area and to facilitate bulk sampling for metalurgical testing. All stripping operations were carried out utilizing a hydraulic backhoe with a capacity of two cubic yards. Stripped areas were then mucked out by hand and washed using high pressure hoses.
The Omega Group, No. 17 Zone A total of eight trenches were stripped with a total of 25,510 cubic yards of overburden removed. Three additional pits were excavated giving a total of 26,214 cubic yards of material removed with an average overburden depth of 22 feet.Also within the Omega Group is the West Crown Pillar which was also stripped and washed giving a total of 36,214 cubic yards of material removed on the Omega Group. Channel sampling was also completed over seven of the trenches and the West Crown Pillar for a total of 763.5 feet.
On the Southwest Group, a Total of 11 trenches (A-K) were stripped and washed totalling 19,124 cubic yards of overburden removed at an average overburden depth of 10 feet. In addition to the 11 trenches, 500 cubic feet of overburden was removed over the Southwest Zone Pit to facilitate ramp access. In total, 19,124 cubic yards of overburden was removed from the Southwest Group. Channel sampling was carried out over the Southwest Main Pit(161.7 feet) and a bulk sample of 3,576 tons was removed.
Deep Drill Program
During February and March 1983, a deep hole was drilled to test the depth extensions of the gold-bearing horizons known to exist in the southeast portion of the Omega Mine group of the Mcvittie Township Gold project of Lenora Exploration Limited.
This hole, OM 84-77, was drilled to a hole depth of 1,737 feet and attained a depth of close to 1,400 feet below surface. It tested the Nos 18, 17 and 4 gold horizons and intersected at shallow depth a new gold-bearing zone, designated as No 22.
Values intersected in zone No 22 were 0.513 oz Au/ton along a core length of 2.1 feet from 648.1 to 650.2, consisting of visible gold associated with coarse pyrite in a green carbonate rock. Zone No 18 was intersected from 1,067 to 1,081 where it returned 0.098 oz Au/ton along a core length of 14.0 feet, true width of 12.0 feet, in pyritized cherty carbonate rocks.
The gold content of Nos 22 and 18 zones increases significantly with depth, this coupled with an increase in the width of the host carbonate rocks, can only be interpreted that both zones may have an excellent depth potential, and that the intersections cut in hole OM 84-77 may represent a halo of of lower gold values found surrounding economic concentrations located further at depth.
A new zone, designated as No 22 was intersected early in the hole at approximately 600 feet below surface while zone No. 18 was intersected at a depth of approximately 1,000 feet below surface. The hole was continued to intersect the No 17 horizon at 1,250 feet below surface.
The increase in gold values in No 22 zone from surface to 600 feet where intersected in hole OM 84-77 coupled with an increased width of the host green carbonate rock confirm the depth potential of this zone.
The No 18 zone was intersected from 1,067 to 1,081 where it returned 0.098 ounce of gold per ton along a core length of 14.0 feet, or a true width of 12.0 feet, in pyritized cherty carbonate rocks. This zone was first intersected near surface in holes 52 and 77 where it returned low gold values. In hole OM 84-77, the gold content of the zone has increased five folds while the width of the host carbonate rocks appear to have increased slightly.
A new zone, designated as No 22, was intersected early in the hole. This zone had been previously intersected in a short hole OM 83-59, where it had returned 0.01 oz Au/ton along a core length of 3.5 feet. This zone is a green carbonate horizon containing coarse visible gold associated with coarse pyrite, possibly referred to as the South Carbonate zone in old mine reports. It returned 0.513 ounce of gold per ton along a core length of 2.1 feet. Of added significance, the carbonate horizon containing this zone has increased in width from surface where it is 60 feet wide to over 150 feet at a depth of 600 feet where the intersection was obtained.
The increase with depth of the gold content of zone No 18 is indicative also of a good depth potential. These increases in thicknesses of both the Nos 22 and 18 horizons had for effect to steepen the dip of the formation to the north and, thus to reduce the thicknesses of the gold-bearing zones located north of Nos 18 and 22. Under these conditions, it is no surprise that both horizons failed to return any values at depth and that the depth potential of these zones can be considered as having been well tested. However, the effect is reversed when considering zones Nos 18 and 22 where the thicknesses of the host rock has increased significantly, indicating that the intersections returned in hole OM 84-77 may represent the outside lower grade margins of a concentration of gold values to be found at depth.
Zones Nos 18 and 22 represent excellent targets for further exploration in that the results obtained in hole OM 84-77 may be located within the a halo of lower grade material accompanying a possible concentration of economic gold values. However, the depth potential of the Nos 17 and 4 horizon has been fully tested.
North Lake Zone; During the later part of the summer, surface stripping and blasting was done in the north part of the Lake claim to investigate an area of mudstone and beach sandstone where old trenches were reported to have returned interesting gold values. Preliminary surface sampling returned highly interesting gold values and the zone was tested with one drill hole. This hole, drilled from east to west, returned 0.14 ounce of gold per ton along a core length of 5.0 feet. Further surface work will be done to defined this zone further.
Lake Claim; The Lake claim was covered with a detailed magnetic survey to help establish the strike of the rock formation on this claim. The results are shown on the attached map at l" m 200 feet. The results did not help in any significant way the geological interpretation of this claim. However, the survey outlined the west margin of the Pancake Bay intrusive in the east portion of the claim.
Southwest Zone; The Southwest zone was tested with a further 18 holes totalling 2,536 feet and a 2,718 ton bulk sample was mined late last winter. The muck was hauled to the Omega tailings for storage and was treated in the same manner as the Lake zone. Results indicate a grade of 0.083 ounce of gold per ton. A study of the of the configuration of the pit shows a dilution of more than 60/L
Additional surface trenching was done and 2 holes were drilled to test the extension of this gold-bearing horizon further along strike to the west. Another hole was drilled north of the Southwest showing area to test a correlating ground VLF-Input conductor. This hole returned 0.075 ounce--of gold per ton along a core length of 2.5 feet.
Omega Group: Work done on this group consisted of surface trenching, and extensive diamond drilling to test the mine pillars and the No. 17 zone to the east. Results are considered highly encouraging. Drill indicated reserve in the Nos. 4 and 17 zone totals 180,986 tons at a grade of 0.163 ounce of gold per ton. The reserves are considered as having a good economic potential and underground exploration through a ramp is definitely warranted. The Omega mine pillar are calculated as containing 88,948 tons at a grade of 0.154 ounce of gold per ton. Due to the fact that the mine was backfilled before closing down, the pillars could be easily amenable to production once the clay overburden has been removed. Provided that a suitable custom mill contract can be arranged, production from the mine pillar is envisaged sometimes later this year.
A total of 49 holes yere drilled for 16,842 feet. Results are considered highly encouraging. Drill indicated reserve in the Nos. 4 and 17 zone totals 180,986/tons at a grade of 0.163 ounce of gold per ton. The reserves are considered as having a good economic potential and underground exploration through a ramp is definitely warranted. The Omega mine pillar/are calculated as containing 88,948 tons at a grade of 0.154 ounce of/gold per ton.