The Ethnographic Open-Air Museum of Latvia museum since 1971. The annual crafts fair become the museum's most famous annual event, attended by tens of thousands of people every year. The museum currently occupies 87 hectares and displays 118 buildings, as well as more than 3,000 items. Most of Latvia's historical ethnic groups are represented in the museum. The museum's collection holds approximately 150,000 artifacts. The Ethnographic Open-Air Museum of Latvia The Ethnographic Open-Air Museum of Latvia () is an open-air museum located just outside Riga, the capital of Latvia, on the lightly wooded shores of Jugla Lake. In 1924, the Latvian Council of Monuments signed an
Geology of Latvia Geology of Latvia The geology of Latvia includes an ancient Archean and Proterozoic crystalline basement overlain with Neoproterozoic volcanic rocks and numerous sedimentary rock sequences from the Paleozoic, some from the Mesozoic and many from the recent Quaternary past. Latvia is a country in the Baltic region of Northern Europe. Several hundred boreholes have returned data about the Precambrian crystalline basement of Latvia, indicating young Middle Proterozoic intrusive rocks such as 1.65 billion year old rapakivi granite or 1.82 billion year old granodiorite in the northeast. Most basement probably formed before the Svecofennian orogeny, between the Archean and Proterozoic. The