The International RUSSIA EXPO Exhibition and Forum. Presentation of the II GeoChallenge International Geological Championship at pavilion B, Nature City (Russian Ministry of Nature).10 April#8659052
The International RUSSIA EXPO Exhibition and Forum. Presentation of the II GeoChallenge International Geological Championship at pavilion B, Nature City (Russian Ministry of Nature).10 April#8659082
The International RUSSIA EXPO Exhibition and Forum. Presentation of the II GeoChallenge International Geological Championship at pavilion B, Nature City (Russian Ministry of Nature).10 April#8659066
The International RUSSIA EXPO Exhibition and Forum. Presentation of the II GeoChallenge International Geological Championship at pavilion B, Nature City (Russian Ministry of Nature).10 April#8659063
The International RUSSIA EXPO Exhibition and Forum. Presentation of the II GeoChallenge International Geological Championship at pavilion B, Nature City (Russian Ministry of Nature).10 April#8659048
The International RUSSIA EXPO Exhibition and Forum. Presentation of the II GeoChallenge International Geological Championship at pavilion B, Nature City (Russian Ministry of Nature).10 April#8659059
The International RUSSIA EXPO Exhibition and Forum. Presentation of the II GeoChallenge International Geological Championship at pavilion B, Nature City (Russian Ministry of Nature).10 April#8659062
The International RUSSIA EXPO Exhibition and Forum. Presentation of the II GeoChallenge International Geological Championship at pavilion B, Nature City (Russian Ministry of Nature).10 April#8659078
The International RUSSIA EXPO Exhibition and Forum. Presentation of the II GeoChallenge International Geological Championship at pavilion B, Nature City (Russian Ministry of Nature).10 April#8659073
The International RUSSIA EXPO Exhibition and Forum. Presentation of the II GeoChallenge International Geological Championship at pavilion B, Nature City (Russian Ministry of Nature).10 April#8659056
