Complex sentence: Based on such interpretations and archaeological evidence, it is now generally accepted that L'Anse aux Meadows was the main base of the Norse explorers, but the southernmost limit of the Norse exploration remains a subject of intense speculation.
Split into simpler sentences: Based on such interpretations and archaeological evidence, it is now generally accepted that L'Anse aux Meadows was the base of the Norse explorers. However the southernmost limit of the Norse exploration remains a subject of intense speculation.