The Ada Tepe prospect was the subject of only very brief attention in previous State funded exploration in the early to mid 1990s, by GeoEngineering of Assenovgrad, and Geology & Geophysics of Sofia.

GeoEngineering carried out an extensive program of geological mapping, trenching and drilling over the nearby Surnak prospect during the early-mid 1990’s, together with a minor amount of trenching on the Skalak and Kuklitsa prospects.

Geology & Geophysics included the entire license area in a SE Rhodopes regional soil sampling program (average sample grid 250m x 50m) conducted during the early-mid 1990’s. Magnetic and IP surveys were also conducted across the prospect.

The results of this early work showed the presence of gold soil geochemical anomalies of significant intensity and extent over the Krumovgrad License area, and a variety of geophysical anomalies.

Since June 2000, BMM has conducted detailed exploration of the Ada Tepe prospect including the establishment of more accurate survey control over the license area, surveying of the surface topography, detailed surface trenching and channel sampling, diamond and RC drilling, rock chip sampling, bulk density measurements, and detailed geological mapping. To date, the drilling forms a notional 25mN by 25mE grid over the entire deposit, while closer spaced drilling on a notional 12.5mN by 12.5mE grid has been completed over two rectangular sub-regions of the deposit.