Weiser senior moved his family to the Schoharie Valley, south of the Mohawk River, earlier than that. When Conrad was 16, his father agreed to a chief's proposal for the youth to live with the Mohawk in the upper Schoharie Valley. During his stay in the winter and spring of 1712-1713, Weiser learned much about the Mohawk language and the customs of the people, who were the easternmost tribe of the Iroquois League. He endured hardships of cold, hunger, and homesickness. Weiser returned to his own people toward the end of July 1713.