The Oliver agate showing is located behind the high school in Oliver, British Columbia (Western Homes and Living; October, 1961).

Agates were reported discovered in a gravel pit behind the Oliver High School. The gravel pit is part of Quaternary unconsolidated glacial, fluvial and alluvial deposits along the Okanagan River. The bedrock source of these agates is unknown. However, bedrock to the immediate south are quartz biotite gneiss, quartzite, marble and amphibolite of the Grand Forks Gneiss. Other bedrock types in the vicinity include metasediments and metavolcanics of the Carboniferous to Permian Kobau Group. To the north, Triassic bedrock includes the Old Tom Formation of the Apex Mountain Complex and the underlying Shoemaker Formation. Numerous rhodonite occurrences (Mo, 082ESW009; Pinky, 082ESW80; and Louis, 082ESW082) have been found in the Shoemaker Formation.