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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  14-Sep-2007 by Mandy N. Desautels (MND)

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NMI 082E3 Ag1
Name CROWN POINT (L.2448), CROWN POINT GROUP, CROWN POINT FR. (L.2449), TRIANGLE FR., ORO FINO (L.1448), SUNNYSIDE (L.1440), NO. 2 (L.2445), NO. 3 (L.2447), ALDER GROVE (L.1534), SOPHIE SHERRON, ZAMORA, MAYBE, LEONA GROUP, ENIO (L.2852), DONKEY Mining Division Greenwood
BCGS Map 082E015
Status Past Producer NTS Map 082E03E
Latitude 049º 08' 03'' UTM 11 (NAD 83)
Longitude 119º 01' 00'' Northing 5444329
Easting 352897
Commodities Silver, Lead, Zinc, Gold Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
J01 : Polymetallic manto Ag-Pb-Zn
Tectonic Belt Intermontane Terrane Okanagan
Capsule Geology

The Crown Point occurrence is located at 914 metres elevation on the Crown Point (Lot 2448) Crown grant. The Crown grant was part of the Crown Point group which consisted of the Crown Point (Lot 2448), Crown Point Fraction (Lot 2449), Triangle Fraction (Lot 1448), Sunnyside (Lot 1440), No. 2 (Lot 2445), No. 3 (Lot 2447) and Enio (Lot 2852). The Alder Grove (Lot 1534) adjoins the group off the northeast corner of the Crown Point and may have previously been the Maybe claim (082ESW118). The Crown Point, Triangle Fraction and Sunnyside are presently Reverted Crown grants; the remaining are of unknown status.

The Crown Point occurrence has a history dating back as early as 1897. At this time the Crown Point occurrence was owned by J. Douglas et al. Development consisted of a 7.62-metre shaft on the Crown Point claim and a small opencut on the boundary between the No. 2 and Sophia Sherron claims. E. Williamson shipped 41 tonnes from the Sunnyside claim between 1913 and 1920. In 1921, under lease to J. Kerr, the old shaft was cleaned out and a crosscut driven from the adit for 3 metres. In 1923, minor ore was shipped from the Donkey. In 1934, R. Forshaw shipped from the Sunnyside. In 1947, G.E. White operated the property and in 1948, an opencut 30 metres long by 3.6 metres wide by 6.1 metres deep was excavated 30 metres south of the shaft. O.D. Frith leased the property from G.E. White in 1949, which included the Crown Point and 10 other claims. Small shipments are recorded from 1949 to 1952. In 1951, the property was leased to Caladian Mines Ltd. and included the Crown Point and 14 other claims. In 1968, Tonto Exploration optioned the property from G.E. White. Some bulldozer trenching was done and the option was dropped.

The Crown Point occurrence lies within an inlier of metavolcanic and metasedimentary rocks of the Carboniferous to Permian Anarchist Group. Greenstone, locally tuffaceous and serpentinized, is the predominant host lithology. Argillite and quartzite, locally cherty, minor limestone and magnesite with mariposite, and gneiss comprise the remaining hostrocks of the Anarchist Group. To the east is a small stock of Early Jurassic granodiorite and microdiorite of the Okanagan batholith. Eocene volcanic rocks of the Penticton Group occur to the north and west. These include feldspar porphyries and aplite dikes. The contact between these units is faulted. The greenstone is folded, faulted, and has a variable northwest to north foliation.

Mineralization on the Crown Point claim is confined to a large body of quartz containing stringers and segregations of galena, sphalerite and pyrite within a greenstone and limestone host. Narrow stringers of galena traverse the limestone, but there is no definite trend to the orebody. The mineralization has been interpreted as the result of contact metasomatic replacement associated with the intrusion of mafic dikes and sills into limy horizons. Mineralization is probably the result of hydrothermal fluids associated with the Okanagan batholith. In 1921, an assay yielded 3.4 grams per tonne gold, 206 grams per tonne silver and 4 per cent lead (Minister of Mines Annual Report 1921, page 184).

Other mineralization includes a very narrow galena stringer near the contact between Penticton volcanics and Anarchist metasediments, on the No. 2 claim. On the boundary between the No. 3 and Sophie Sherron claims an opencut uncovered a 30 to 60 centimetre wide honeycomb quartz vein with coarse-cubed galena. The vein was traceble for a short distance.

The Crown Point occurrence has a recorded production of 480 tonnes from which 129,045 grams of silver, 435 grams of gold, 16,807 kilograms of lead and 16,368 kilograms of zinc were recovered. Mining occurred between 1947 and 1952.

Bibliography
EMPR AR *1897-596; 1900-879; 1905-181; 1913-154,421; 1918-211,470;
1919-367; 1920-163,347; *1921-184; 1923-184; 1934-A25; 1947-A37,
154; 1948-A38,126; *1949-A40,148-149; 1950-A40; 1951-A41; 1952-
A41,139; 1968-227
EMRP ASS RPT *9909, 10765, 12746, *12759, 13020, 13801, 13839,
*15918, *16290
EMPR BC METAL *MM00947; MM00935
EMPR INDEX 3-193,215,219
EMPR MR MAP 7 (1934)
EMPR OF 1989-5
GSC MAP 538A; 539A; 37-21; 15-1961; 1738A
GSC OF 481; 637; 1505A; 1565; 1969

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