| ADL_Field_Name | Type | ADL_Bucket | Definition | MARC_MIL | FGDC_Ref | FGDC | Notes | Catalog_Report_Field_Name |
| adl_identifier | text | identifier | Unique identifier that will be used in ADL to locate this item. Can be existing id (ocode, scene id, local call number, system id) or can be assigned by ADL. More than one field can be aggregated if necessary. | adl:global-identifier | main01 | ADL_control_number | ||
| other_identifiers | text | identifier | Unique identifiers, other than adl_identifier, that can be used to locate this item e.g. scene id, local call number, system id, etc. | main015 | ||||
| title_item | text | subject_related_text | The name by which an individual item in the collection is known. Item titles are composed of formatting instructions and names of fields which uniquely describe the item. Example: "Digital Raster Graphic, of ' || mapname || ', ' || state." | main02 | Title | |||
| w_b_coord | real | geographic_locations | Western-most coordinate of the limit of coverage expressed in longitude. | MARC-B:034d | 1.5.1.1 | West Bounding Coordinate | main03 | |
| e_b_coord | real | geographic_locations | Eastern-most coordinate of the limit of coverage expressed in longitude. | MARC-B:034e | 1.5.1.2 | East Bounding Coordinate | main04 | |
| n_b_coord | real | geographic_locations | Northern-most coordinate of the limit of coverage expressed in latitude. | MARC-B:034f | 1.5.1.3 | North Bounding Coordinate | main05 | |
| s_b_coord | real | geographic_locations | Southern-most coordinate of the limit of coverage expressed in latitude. | MARC-B:034g | 1.5.1.4 | South Bounding Coordinate | main06 | |
| other_coordinates | Text | geographic_locations | main07 | |||||
| year | integer | dates | The year the item was created. | main08 | year | |||
| beginning_date | date | dates | The first year (and optionally month, or month and day) of the event. | MARC-B:037c | 9.3.1 | Beginning Date | main09 | |
| ending_date | date | dates | The last year (and optionally month, or month and day) for the event. | MARC-B:037c | 9.3.3 | Ending Date | main10 | |
| originator | text | originator | The name of an organization or individual that developed the data set. If the name of editors or compilers are provided, the name must be followed by "(ed.)" or "(comp.)" respectively. | MARC-B:110a | 8.1 | Originator | main11 | Originator |
| assigned_terms | text | assigned_terms | Word or phrase from a thesaurus used to describe the subject of the data set. | MARC-B:651v(R) | main13 | |||
| subject_related_text | Text | subject_related_text | main14 | |||||
| all_text | alltext_t | alltext | An ADL generated field composed of title, assigned terms and topical text. Field format = ROW ('title_item', 'assigned terms', 'topical text') with multiple items separated by ;. | main15 | ||||
| format | text | format | The name of the data transfer format. | MARC-B:037n | 6.4.2.1.1 | Format Name | main16 | Format |
| type | text | type | MARC-B:655a(655$2value=ADL) | main17 | Type | |||
| quadname_mapname | text | quadname; subject_related_text | Map name - a variable-length uppercase and lowercase entry that lists the names of USGS large-scale topographic maps that portray the area where the feature is located. | main19 | ||||
| scale_denominator | integer | scale | MARC-B:034b,255a | Source Scale Denominator | main20 | Scale | ||
| resolution_meters | real | resolution | MIL-B:01730 | main21 | ||||
| other_fields_information | text | subject_related_text | Other optional information that would be useful in describing and searching this collection. May be a list of searchable fields and detailed description of field content and utility. | main22 |