The Eva is part of the Meridian property (082KNW064). The first discovery of gold in the district was on the Eva claim (082KNW066). In 1900 an inexperienced prospector searching for silver-lead ores found what is now known as the Eva lode. Assays showed high gold values and a staking rush followed. By 1902 a group of 21 claims was assembled forming the nucleus of the property and much surface work together with more than 490 metres of lineal underground development was completed by Imperial Development Syndicate Ltd. At the end of mine operations in 1908 development comprised 945 metres of drifting on seven levels, 610 metres of crosscuts, 115 metres of raises and 23 metres of shaft sinking.

The Eva mine explores and develops two veins lying in and along two fault planes connected by numerous cross veins and stringers. The direction of the veins is about 120 degrees, cutting the host rocks at a low angle. On the No. 6 level the confining faults are 53 metres apart and dip away from each other. Since the veins follow these faults and converge upward, they are only 27 metres apart on the No. 2 level (150 metres above).

The country rocks (Broadview Formation of the Lower Paleozoic Lardeau Group) are spotted phyllite cut by yellow-weathering schistose diabase. The veins are quartz accompanied by siderite and a small amount of sulphides and some free gold. The sulphides consist of pyrite, a little galena and some sphalerite. The veins vary in width from a few inches to several metres. Gouge along the faults has evidently confined the ore-bearing solution within these planes and the crushed country rock between them.

Production from the Eva from 1903 to 1908 totalled 28,718 tonnes resulting in 235.2 kilograms of gold and 30.8 kilograms of silver. See Meridian for production details.

Duval Corporation mapped and sampled the old workings in 1968. Madison Oils Limited optioned the property in 1978. Granges Exploration Ltd. optioned the property from Lucky Strike Resources Ltd. in 1987 and conducted surveys and sampling. In 1989, Kelozo Resources Inc. drilled 6 holes, totalling 639.5 metres, and conducted a geophysical survey on the Stockholm claim.