Methods used to spatially locate features observed in the field (e.g. site/outcrop descriptions, structural readings, etc.), data obtained from legacy documents (e.g. airphotos, maps, previously published reports), or the position of exploration, mining and related infrastructure features. Each location method has a spatial accuracy that indicates the maximum estimated approximate error in the location. Captured geographical locations for geological or mining features are expressed as a set of coordinates (latitude and longitude degrees), with or without an elevation above or below sea level.