National Geologic Map Database

This information is made available to our cooperators in the State geological surveys and universities, to assist with entry and modification of information in the National Geologic Map Database's Map Catalog. Please contact us at ngmdb@usgs.gov with any questions or comments.

This is your database!

As stipulated in the Geologic Mapping Act of 1992, the NGMDB is a National Archive built through collaboration between the State geological surveys and the USGS. It is a resource for all users, in all states, and it serves to support the activities, business, and products of all cooperators. The site is visited by tens of thousands of users each month and, through the Catalog's Product Description Pages, these users are linked to your agency's Web site and publications. The NGMDB facilitates access and visibility for your agency - we encourage you to consider it as an extension of your Web site's services. Please contact us regarding how we might best serve your agency.

What kind of publications are appropriate?

The NGMDB Map Catalog is a comprehensive source for geoscience maps and reports of the Nation. Despite the seemingly narrow focus implied by the name "National Geologic Map Database", authorization in the Geologic Mapping Act stipulated that its scope be somewhat broader in order to include the wider range of geoscience information that is relevant and needed to address the societal issues stipulated in the Act. And so we encourage our partners to contribute bibliographic records for any and all geoscience themes.

These maps and reports may be in:

  1. Formal or Open-file series
  2. State Geological Survey map series
  3. Book publications
  4. Student theses
  5. "Gray literature".

You also are encouraged to include publications that don't contain a map but do contain descriptions of the geology in specific areas (e.g., a state park) that have a geographic footprint. Also, please include maps that have been superseded but are of historical significance or are still requested by users (e.g., older versions of state geologic maps).

Adding publications to the Map Catalog

Please read the Map Catalog record entry manual. Then, you may choose to enter map records in one of two ways:

Use the Web Input form:

The online data entry form allows you to enter a single map record. The form provides picklists for various fields (e.g., Themes, Counties within a state), and can compute the bounding coordinates for maps of a quadrangle or county. To begin using this form, please send a request to ngmdb@usgs.gov. We will send you a username and password, and then you can access the form. When you submit a map record through the form, we will process as soon as possible, and send you a copy of the record for error-checking.

Input form (requires password)

Submit data in Text or Excel format:

If you have many records to submit, it may be more efficient for you to compile them into a single formatted file. We offer both Text and Excel templates for your use. Please note that several fields (e.g., Publisher, State, Type, Ordering) have fixed-acronym entries, and so please consult the lists provided in the Catalog's record entry manual. Also, please note that the lat/long must include the N and W designations, and the longitude must have a "0" (zero) placeholder at the beginning if the value is less than 100 degrees (these rules are the same as for on-line entry).

Excel template

Text template

Whichever method you choose (and you may want to use both), the catalog entries should be sent to the NGMDB project at ngmdb@usgs.gov. We will work with you to ensure that all Catalog records are readable and complete.

Modifying Map Catalog records

At some time in the future, you may want to modify records that you've contributed to this Catalog, or you may find an error in a record for another agency's publication.

When to modify a record
  1. Errors in the citation or bounding coordinates
  2. The publication is now out of print or has been superseded,
  3. The publication is now available in digital form, or
  4. The URL to the publication has changed.

If there are many publication records that need to be corrected (e.g., your Web site was redesigned, and many of the URLS to publications have changed, then please contact us at ngmdb@usgs.gov and advise us of the changes needed.

If only a single publication record needs to be modified, please use the "Corrections?" button on its Product Description Page. The popup Corrections form lets you designate the "Type of Correction" (e.g., Broken Web link, Citation error, Superseded by another publication, and so on). Alternatively, you can submit the changes through the forms provided below.

  1. Change a URL and Data Format for a Catalog record
  2. Superseding Existing Records
When a product goes out of print

Please use the corrections link provided at the bottom of the record's Product Description Page (PDP). When you click the corrections button, a form will pop up. Enter "Availability" in the Field text box and "Out of Print" in the Comments text box. Then, submit the form and we will update the record accordingly. An updated PDP for an out-of-print record is shown here. To help the user find the out-of-print product, the revised PDP will show a list of depository libraries. Our state-by-state listing of depository libraries may be out-of-date, and we would appreciate all additions and corrections to this list.

If a product is available in digital form on CD-ROM or online

Registered contributors to the NGMDB may use an input form [depicted here | available here] to provide us with the information needed to modify the PDP. To see an example of a map product that has online data, click here. In this example, the Publication Format was changed from "Paper" to "Digital and Paper" and a link was provided to the online version ("View the publication"). To see an example of a map product supported by a Web site containing general information, map data, and metadata, click here.

When a product is superseded by another product in the catalog

Use the form available here. This form may need to be duplicated and then modified to work standalone. currently it only works as part of the input form. It only identifies the record to be superseded. It needs the capability of entering a pub_id for the superseding record.

Additional Resources