fishing, trapping, hunting, and farming. The latter was developed in the late Woodland Period of culture, roughly the years 900 to 1600. The peoples used the Pamunkey River as a main mode of transportation and food source. The river also provided access to hunting grounds, and other tribes. Access to the river was crucial, because Pamunkey villages were seldom permanent settlements. Because the Pamunkey people did not use fertilizers, they moved their fields and homes about every ten years to allow land to lie fallow and recover from cultivation. The Pamunkey, and all Virginia tribes, had an intimate, balanced relationship with the animals, plants, and the geography of their homeland. Like other native tribes, they had techniques, such as controlled burning, to clear land for cultivation or hunting. The land belonged to the group as a whole. The chief and council would allot a parcel of cleared ground to a family head for life. Differing concepts of land and farm animal ownership and use caused some conflicts between the Virginia tribes and English colonists. For native tribes, the land was "owned" only as long as it was farmed; after that, it was available for "public" use. The Englishmen had, instead, laws on private property and believed that the land was theirs as soon as the tribe sold it to them. As a result, when Englishmen allowed land to lie fallow, Native Americans assumed they were free to use it for hunting and gathering. Many Englishmen considered both as encroachments on their private property. Homes Pamunkey homes, called yihakans (or yehakins), were long and narrow; they were described as "longhouses" by English colonists. They were structures made from bent saplings lashed together at the top to make a barrel shape. Indians covered the saplings with woven mats or bark. The 17th-century historian William Strachey thought that bark was harder to acquire, as he noticed that only higher-status families owned bark-covered houses. In summer, when the heat and humidity increased, the mats could be rolled up or removed to allow more air circulation. Inside the house, they built bedsteads along both walls. They were made of posts put in the ground, about a foot high or more, with small poles attached. The framework was about wide, over which reeds were put. One or more mats were placed on top for bedding; more mats or skins served as blankets, with a rolled mat