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Rh without noticing how largely these works are found near to some present-day thoroughfare. This is of significance. While it is true that works near such highways are perhaps more quickly discovered and easily approached, it is at the same time doubtful if any of importance have been ignored because they are at a distance from highways of approach. The relation of these works to neighboring roads has also been accidentally emphasized by the necessity of describing their position, which is often most easily done by a reference to adjacent roads. For all this due allowance must be made. At the same time this does not explain the fact that a significant fraction of these works lie along the general alignment of our present routes of travel and are in numerous instances touched by them. It need hardly be added that these roads were laid out with as much reference to the stars above them as to the ancient works near which they accidentally pass.

The following instances have a bearing on the question:

Two miles from Madison, Wisconsin, a line of mounds is found beside a highway