The Surprise No. 3 (Lot 1776) claim is located on the south-western slope of Knob Hill, 3.5 kilometres east of Greenwood. Access to the area is from Highway 3 via the Lind Valley road.
The Surprise claim was Crown granted to F.W. Groves in 1908. In 1917, under lease to M. Kane, J. Cunningham and A. Gustafson, development consisted of a 15-metre shaft, a 9-metre drift and trenching. The shaft was sunk on a vertical, 1.2-metre wide vein with chalcopyrite, pyrite and trace molybdenite. Wallrocks are limestone. A sample assayed 7.4 per cent copper and 34.3 grams per tonne silver (Annual Report 1917, page 203). In 1918, under lease to J.E. Thompson, development consisted of deepening the shaft to 23 metres and driving an 18-metre drift. Shipments in 1917 and 1918 totalled 87 tonnes, yielding 3717 kilograms of copper and 2457 grams of silver. J. Cunningham and Sartoine worked the property in 1921. In 1926, R. Forshaw shipped ore (6 tonnes), which is included with the Brooklyn (082ESE013), from this property. During 2008 through 2012, Grizzly Discoveries Inc. completed programs of soil, stream sediment and rock sampling, geological mapping and ground geophysical surveys on the area as the Overlander area of the Greenwood property.
The area is underlain by limestone, argillite and greenstone of the Permian Attwood Group. See Skylark (082ESE011) for additional geology and development in the area.