Parasha Chukat Numbers 19:1-22 discusses the Red Heifer and purification. Numbers 20:1 The entire congregation of the children of Israel arrived at the desert of Zin in the first month, and the people settled in Kadesh. Miriam died there and was buried there. How is verse 20:1 interpreted to mean "AFTER FORTY YEARS of journeying through the desert" they arrived at Zin? There is no mention of years.