Feedback
Corrections? Updates? Omissions? Let us know if you have suggestions to improve this article (requires login).
Thank you for your feedback

Our editors will review what you’ve submitted and determine whether to revise the article.

Muhu, archipelago and island, Estonia, separating the Gulf of Riga from the Baltic Sea. The archipelago’s three main islands are Saaremaa, the largest, in the south; Hiiumaa in the north; and Muhu, the smallest, in the east nearest the mainland. Navigable straits separate the islands from each other and from the mainland. Ferries serve the archipelago, and a causeway links the road networks of Saaremaa and Muhu islands. Muhu island is composed largely of limestone...