Albula is the bitch of a mountain range separating Engagin from the rest of Switzerland. Those going frequently to St. Moritz will know about. It got in the meantime easier to reach jetsetters Destination by Vereinatunnel connecting Engadin with Klosters.
Bernina is a mountain range southern of St. Moritz on the border with Italy. Highest Peak is with 4049m Piz Bernina, which is the only 4k mountain in the Rhaetian alps. All other 4k Swiss mountains are around Zermatt.