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Many of the casts depicted in the database are from my private collection. Whenever possible, these were photographed in a controlled environment against a background that has a prominent 1 inch grid with 1/2 inch demarcations. While casts encountered in the field cannot be photographed under such ideal conditions, whenever possible the cast or footprint will be photographed with a scale item.
Historically, the documentation of impressions and trackways has been of generally poor quality. Much information is missing, or was never collected at all. Due to this, many data fields will unfortunately have to be left blank or labeled "unknown". Also, some information will be withheld at the request of the witnesses and investigators themselves. Such information might include specific locations or names. When this occurs, it will be noted as "confidential".
The measurements indicated in the database are taken in either inches or centimeters, and are always clearly labeled as such.
A) The overall length is measured from the base of the heel to the point on the toes that is farthest forward. Note that this measurement is not tied to a particular digit, but rather the greatest overall length of the foot.
B) The width of the ball is taken at the widest point below the toes.
C) The heel width is similarly taken at the widest point on the heel.
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