Time estimates will vary by the size of the project area, the amount of previous disturbance, depth of the testing necessary, and the complexity of the cultural resources potentially located within the project area. For large project areas or project areas containing significant resources you should plan more time into your project schedule for cultural resources work. For small project areas, project areas that may have been disturbed in large part in the past (like previously strip-mined areas), or project areas that after survey are confirmed to contain no cultural resources less time will be needed.