Journey from Egypt
The journey to The Promised Land began in the city of Pi-Ramesses, located in the territory of Goshen. Instead of following trade routes north along the Mediterranean Sea, God led the people south.
They got stuck at Etham and turned back to camp at Pi-Hahiroth, where God parted the Red Sea. The people then spent 40 years wandering in the desert. God was trying to form a new nation out of them, but the people continued to question God's provision.
Note: Midian is the area to which Moses fled after committing murder 40 years before the Exodus. Marah and Mt. Sinai are other locations mentioned in Where the Desert Blooms.