Table Name | Field Name | Begin Column | Definition | Valid Values | Descriptions
millobmodl.dbf | Modl_ID |  | Number, 4, 0 | Ex: 25 | Unique identifiers used in the database
| Modl_Sourc |  | Text, 50 |  | Specific source the data was gathered from. See metadata for detail about each source.
|  |  |  | CWI-MGS Located | Well that contains bedrock or minima information located by the Minnesota Geological Survey (MGS)
|  |  |  | CWI-DNR Located | Well that contains bedrock or minima information located approximately by the Minnesota Department of Natural Resources, Division of Lands and Minerals (See Metadata for Specific Locating Methodology)
|  |  |  | Field Observation | MN DNR observed granite bedrock outcrops
|  |  |  | Drilling-MGS | Drill holed by MGS that encountered bedrock
|  |  |  | Drilling-Explorer | MN DNR Exploratory drill hole that encountered bedrock
|  |  |  | MGS Outcrop | MGS observed bedrock outcrop
|  |  |  | USDA/NRCS - Outcrop | Soil Survey observed bedrock outcrop
| Surf_Elev |  | Number, 4, 0 | Ex. 1250 | Surface elevation (feet) of data point, calculated from 30 Meter DEM or extracted from CWI data if available
| Overburden |  | Number, 4, 0 | Ex. 100 | The data point’s depth to (In Feet) hard bedrock or minima interpreted from the CWI stratigraphy table or from the MGS and Exploratory drilling database. Outcrop points values equal ‘0’.
| Modl_Elev |  | Number, 4, 0 | Ex. 1150 | The model’s hard bedrock and minima elevations (Surf_Elev – Overburden)
| Geo_Desc |  | Text, 75 | Ex. Granite – Dk. Gray/Hard | A geologic description of bedrock and minima data taken directly from CWI stratigraphy (i.e., Material – Color/Hardness). If source of point was an outcrop, the description further defines the source.
| Bdrk_Conf |  | Text, 3 | Ex. Yes/No | A yes/no record answering the question, did the well drilled hit hard bedrock.
| Confidence |  | Text, 10 |  | Confidence class (high, moderate, low) of data point accuracy related to actual location.
|  |  |  | High | It is probable that the point location is within 0-5 acres of actual location.
|  |  |  | Moderate | It is probable that the point location is within 0-40 acres of actual location
|  |  |  | Low | It is probable that the point location is within 0-160 acres of actual location
| Relateid |  | Text, 10 | Ex. 0000645232, Not CWI | These are the unique identifiers for the CWI wells (Relate item with millcwistrat.dbf). An overburden point with ‘Not CWI’ can not be used to relate to millcwistrat.dbf