The following statements and disclaimers apply to all web sites managed by the U.S. Geological Survey (USGS) unless otherwise noted.

Privacy

The USGS web site which referred you to this document conforms to the general U.S. Department of Interior policy on privacy as outlined in the DOI Privacy Statement and as detailed below.

How we handle the information we gather when you visit our web site-

Web server activity logs

Like most web servers on the Internet, our servers collect and store all of the information that your web browser sends when it requests a web page, including:

• the name, domain, and numerical internet address of the "host" computer (typically a computer belonging to your Internet Service Provider and not your personal computer) from which you access the Internet;
• the date and time you accessed our site;
• the Internet address of the web page that you came from;
• the page you requested from our site and the number of characters sent to your computer; and
• the information your web browser software sends as its so-called "User Agent," which typically identifies the browser software and may also indicate the operating system and type of CPU used in your personal computer.

It is impossible to determine the actual identity of an individual user from this information.

The logs are periodically summarized and analyzed in order to study site usage over time and to perform other studies to help us improve the site's organization, performance, and usefulness.

Electronic mail

When you send us personal identifying information via e-mail (that is, in a message containing a question or comment, or by filling out a form that e-mails us this information), we use it to respond to your requests. We may forward your e-mail to other Government employees or contract personnel who are better able to answer your questions. We do not retain or distribute lists of e-mail addresses to any parties outside of the USGS except as necessary to conduct official U.S. Government business. In no event, do we distribute lists of e-mail addresses to non-Government entities.

File transfer protocol (FTP)

Many USGS sites using the file transfer protocol may also store your e-mail address if your web browser is configured to provide it. By default most web browser software does not send your e-mail address; this option is configured through your browser preferences. In Netscape Navigator, for example, this option must be set by you through the Advanced preferences category by the item labeled, "Send email address as anonymous FTP password."

Online surveys

When you voluntarily provide us with personal information as part of an online survey, we use it to perform various quantitative and qualitative analyses to improve customer service and satisfaction. We may forward the information collected to other Government employees or contract personnel to perform the actual analysis. You are under no obligation to participate in such surveys. Non-participation will not inhibit your use of our web site in any way. If you provided the information to us in error, you may request its removal at any time.

Ordering products

When you voluntarily provide us with personal information such as name, shipping and billing address, and credit card number when ordering products online, we use the information to fulfill your order. We may forward the information collected to other Government employees or contract personnel or to other computer systems (such as secure electronic commerce servers) to complete the requested transaction.

Marketing information

We may collect information from you, with your permission, that will allow us to provide various customer services, such as promotional materials and product availability notices. We may forward the information collected to other Government employees or contract personnel to provide specific marketing services. We will remove such information at your request.

Collection and release of gathered information

We want to make it clear that we will not obtain personal identifying information about you when you visit our web sites, unless you choose to provide such information to us. Except in the course of officially authorized law enforcement investigations, or in the event of a suspected attempt to deliberately circumvent our system's security with the intent to gain unauthorized access or to do physical damage (for example, an attack by hackers), we do not attempt to identify individual users or share any information we receive with any parties outside of the USGS. In the latter case, collected information associated with a suspected intruder might be shared through the USGS's Bureau Information Resources Security Administrator with an incident response service such as the CERT^® Coordination Center.

Retention of collected information

Cookies - Some applications may save a "cookie" on your computer's hard disk to provide a temporary history of actions taken. A common example is the tracking of items placed in an online "shopping basket." We do not retain any record of "cookies" beyond what is necessary for running the application.

Web server activity logs - Monthly extracts of the log files are archived and stored off-line at our discretion for an indefinite period of time. Some statistical summaries derived from these data may be retained online or off-line at our discretion for an indefinite period of time.

E-mail - Information collected via e-mail will be retained at our discretion in a directly readable form for as long as necessary to complete our response. The e-mail itself may be retained in an archival form as required by Federal laws and regulations governing the retention of historical records of government agencies. For more information, please refer to the National Archives and Records Administration's Records Management Program.

Online surveys - Information collected via online surveys may be maintained at our discretion for an indefinite period of time.

Marketing information - Such information may be maintained at our discretion for an indefinite period of time.

Links to Non-USGS Sites

Links and pointers to non-USGS sites are provided for information only and do not constitute endorsement, express or implied, by the USGS, U.S. Department of the Interior (USDOI), or U.S. Government, of the referenced organizations, their suitability, content, products, or services, whether they are governmental, educational, or commercial.

Non-Endorsement of Commercial and Other Non-USGS Products and Services

Hypertext links and other references to non-USGS products and services are provided for information only and do not constitute endorsement or warranty, express or implied, by the USGS, USDOI, or U.S. Government, as to their suitability, content, usefulness, functioning, completeness, or accuracy.

Content Accuracy, Completeness, and Usability of USGS Data and Information

We make every effort to provide and maintain accurate, complete, usable, and timely information on our web sites. However, some USGS data and information accessed through these pages may, of necessity, be preliminary in nature and presented prior to final review and approval by the Director of the USGS. These data and information are provided with the understanding that they are not guaranteed to be correct or complete. Users are cautioned to consider carefully the provisional nature of these data and information before using them for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Conclusions drawn from, or actions undertaken on the basis of, such data and information are the sole responsibility of the user.

Copyrights and Trademarks

USGS-authored or produced data and information are in the public domain. While the content of most USGS web pages is in the public domain, not all the information on our site is in the public domain. Some images/graphics are used by USGS with permission. For other uses, you may need to obtain permission from the copyright holder under the copyright law.

You are welcome to make a link to any of the Web pages USGS has published on the Internet. There is no need to request permission.

The USGS identifier is trademarked and must be used in accordance with the rules outlined at Visual Identity System. Information on who may use the USGS identifier and how to obtain a copy of it is available at Use of the Trademarked USGS Identifier by Outside Organizations.

We will identify material we use from sources outside of USGS, and request others do the same when using information published by USGS. Credit can be provided by including on the page (or via a link to a credits page) a citation such as:

Credit: U. S. Geological Survey
U. S. Geological Survey/photo by Jane Doe (if the artist is known)
USGS/Ft. Collins, CO (if originating office but not the artist is known)

Liability

Neither the U.S. Government nor any agency thereof, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights.