The Euphrates showings are situated at approximately 1219 metres elevation on the east side of the Salmo River, 11.2 kilometres south of Nelson. The Golden Age property lies on the west side of the river, directly across from the Euphrates.

Highly schistose, augite porphyry volcanics of the Lower Jurassic Elise Formation (Units Je10 and Je11b, Open File 1989-11), Rossland Group, contain a number of vein deposits either conformable to or crosscutting the regional foliation trend of 320 degrees, with dips of 70 to 80 degrees southwest.

The deposit is at the southern end of the Silver King shear zone, a wide regional zone of intense deformation. The occurrence consists of the El Tee, Minto and Nickel Plate adits at approximately 1161 metres elevation and the Lost Cabin adit at approximately 1464 metres. The El Tee vein roughly parallels the regional foliation trend at surface but dips 70 degrees northeast. The vein is narrow, with a maximum width of approximately 0.15 metre, and has sharp, unsheared contacts with the host rocks. Near surface, it is oxidized to shallow depths and carries significant free gold. The Lost Cabin and Minto veins northeast of the El Tee are controlled by poorly defined shears. These shears are approximately 8 and 4 metres wide, respectively, and roughly parallel the regional schistosity. They contain narrow stringers and lenses of quartz within sheared, chloritized volcanics with minor sulphides in the wallrocks.

The Nickel Plate "vein" is a shear-controlled felsic dike approximately 4 metres thick, which carries less than 1 gram gold on average and generally parallels the orientation of the Minto and Lost Cabin veins. The vein systems in general host a gangue of quartz plus or minus carbonate and chlorite with galena, sphalerite, pyrite, arsenopyrite, chalcopyrite, native gold and native silver in decreasing order of abundance.

The area was initially explored in the late 1800s, with exploration and development work on the Lost Cabin showings, situated approximately 610 metres southeast of the lower Ell-Tee adit.

The Lost Cabin group—the Lost Cabin, Queen Mary and Blue Bell claims—was staked in July 1911 by E. Ballinger of Salmo. The claims were optioned to the Hobson Silver-Lead Company Limited of Spokane, and approximately 91 metres of underground development work was carried out in 1912.

Further development work was reported in 1917 by F. Stoner of Cokeville, Wyoming, and in 1918 by F. Shoemaker. The workings at that time included two adits, an 8-metre inclined shaft and open cuts.

The Euphrates showings were discovered in 1926 by S. and E. Terzian and A. and G. Pashgian. Five claims—the Euphrates, Rosa, Lillian, Pasadena and Minto—were staked. An additional 16 claims staked in 1927 included the old Lost Cabin showings. The owners incorporated the Euphrates Mining Company Limited in April 1928.

Portland, Oregon, interests acquired an option on a controlling interest in the company and development work was carried out in several adits. Small amounts of ore were put through the 10-stamp mill on the Golden Age property in 1927 and 1929; the mill was destroyed by fire later in 1929. An aerial tram to the Ell-Tee adit at 1203 metres elevation was installed in 1930 and a small amount of ore was shipped in 1931. The Portland interests gave up their option in the fall of 1931.

Work resumed in August 1933 when an option on a controlling interest in Euphrates Mining was acquired by the Spokane-Idaho Copper Company of Spokane, Washington. The company extended the lower Ell-Tee adit and carried out some diamond drilling. Work was suspended in the summer of 1934.

The Euphrates Mining Company resumed work on the property and approximately 381 metres of drifting and 228.6 metres of cross cutting was carried out in 1936. The workings at that time on the Ell-Tee vein included an upper adit 53 metres long and a lower adit approximately 610 metres long. From the lower adit, crosscuts were driven 73 metres to the northeast toward the Minto vein and for 91 metres in search of the Lost Cabin vein. A crosscut was also driven 229 metres to the Nickel Plate vein, which was drifted on for 427 metres. The Minto workings included two adits: an upper adit driven 37 metres and a lower adit approximately 175 metres in length. On the Nickel Plate vein, which was a new discovery, trenching was done in 1935 and 1936.

General Lee Mining & Milling Co. Inc. of Seattle carried out 610 metres of underground diamond drilling on the property in 1938. In 1940, the Gold-Silver-Tungsten Mining & Milling Co. of Seattle held the property. A 100-ton per day mill from the Ottawa mine in the Slocan was installed, and the tramline was rebuilt. The mill operated for a short period in 1941, milling a small amount of ore from the Nickel Plate and Minto veins.

Between 1928 and 1941, approximately 272 tonnes were mined, mainly from the El Tee vein, which contained approximately 48 grams per tonne gold, 251.6 grams per tonne silver, 2.77 per cent lead and 1.7 per cent zinc. The system is similar to and might be a strike extension of the Golden Age deposit (MINFILE 082FSW185) to the northwest, across the Salmo River. Minor scheelite was reported and a tongue (sill?) of granite of the Middle to Late Jurassic Nelson Intrusions outcrops approximately 250 metres southwest of the showing.

A small amount of crude ore was shipped in 1960 by L. Soukeroff and B. Logan.

Robert Mines Ltd., incorporated May 1969, acquired the A1 to A8 claims covering the Euphrates property; the Golden Age property was also acquired. In 1970, a geochemical soil survey (197 samples) was carried out on the A group.

Geochemical, magnetic, electromagnetic and self-potential surveys were carried out in 1971. From 1972 to 1973, geological mapping, stripping and 93 metres of diamond drilling in four holes was conducted on the A2 to A4 claims.

In 1990, R.J. Bourdon conducted a soil geochemical survey and hand trenching. Results failed to identify additional areas of anomalous gold but did show a copper anomaly extending north from the Minto adit Assessment Report 21122).

In 2000, Sultan Minerals Inc. collected a grab sample from the occurrence that returned a grade of 9.82 grams per tonne gold, 78.7 grams per tonne silver, and 0.45 percent copper (Giroux, G., Grunenberg, P. (2012-04-30): Technical Report on the Kena Property, Nelson, BC).

In 2012, Eagle Mapping Ltd. conducted an airborne LiDAR survey over a 15.3 square kilometre area of the Kena Property.

In 2012 to 2013, Altair Gold Inc. conducted a rock sampling program over the property occurrences of Gold Mountain, Kena Gold, Euphrates, South Gold, and Three Friends. Of the 179 rock samples collected, eight returned gold grades greater than 0.3 grams per tonne.