Kabbalah zu Bamidbar 20:1

"And Sarah's life was" Of all the women in the world, why is Sarah the only one whose death is mentioned in Torah? Rabbi Chiya answered, This is not so, for it is written, "And Rachel died, and was buried in the way to Efrat" (Gen. 35:19), "and Miriam died there" (Num. 20:1), "and Deborah, Rivkah's nurse, died" (Gen. 35:8) and "the daughter of Shua, Judah's wife died" (Gen. 38:12).

If you say that it is written of Miriam, "And Miriam died there, and was buried there" (Num. 20:1) (This was written) only to show that Yisrael sinned. Yisrael had no water there without Miriam, and (her days and years) were not specified when describing her death, as was done for Sarah.