Shovel test pit
（重定向自Shovel test）
A shovel test pit (STP) is a standard method for Phase I of an Archaeological survey. It is usually a part of the CRM methodology and a popular form of rapid archaeological survey in the United States of America and Canada.
It designates a series of (c. 0.50 m or less) test holes, usually dug out by a shovel (hence the name) in order to determine whether the soil contains any cultural remains that are not visible on the surface. The soil is sifted or screened through 1/4" or 6 mm wire mesh to recover the artifacts.