The U. S. Geological Survey, FISC St. Petersburg, would like to acknowledge NASA Goddard Space Flight Center for their cooperation and assistance in the development of the data. The U. S. Geological Survey would also like to acknowledege National Park Service management and personnel at Colonial National Historical Park.
One goal of the project is to produce highly detailed and accurate digital elevation maps (DEMs) of National Parks for use as a management tool and to make these maps available to scientists and natural resource managers within the parks.
Are there legal restrictions on access or use of the data?
Access_Constraints:Any use of these data signifies a user's agreement to comprehension and compliance of the U. S. Geological Survey Standard Disclaimer. Ensure all portions of metadata are read and clearly understood before using these data in order to protect both user and U. S. Geological Survey interests. See section 6.3 Distribution Liability.Use_Constraints:Although the U. S. Geological Survey is making these datasets available to others who may find the data of value, the U. S. Geological Survey does not warrant, endorse, or recommend the use of thes data for any given purpose. The user assumes the entire risk related to the use of these data. These datasets are not for navigational purposes. The U. S. Geological Survey is providing these data "as is", and the U. S. Geological Survey disclaims any and all warranties, whether expressed or implied, including (without limitation) any implied warranties of merchantability or fitness for a particular purpose. In no event will the U. S. Geological Survey be liable to you or to any third party for any direct, indirect, incidental, consequential, special, or exemplary damages or lost profits resulting from any use or misuse of these data.Acknowledgement of the U.S. Geological Survey, FISC St. Petersburg as a data source would be appreciated in products developed from these data, and such acknowledgement as is standad for citation and legal practices for data source is expected by users of this data. Sharing new data layers developed directly from these data would also be appreciated by the U. S. Geological Survey staff. Users should be aware that comparisons with other data sets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in photo interpretation, mapping conventions, and digital processes over time. These data are not legal documents and are not to be used as such.
The U. S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein. These data and related graphics are not legal documents and are not intended to be used as such.The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and consistent within the limitations of geospatial data in general and these data in particular. The related graphics are intended to aid the data user in acquiring relevant data; it is not appropriate to use the related graphics as data.The United States Geological Survey gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that these data are directly acquired from an USGS server and not indirectly through other sources which may have changed the data in some way. Although these data have been processed successfully on a computer system at the United States Geological Survey, no warranty expressed or implied is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data.
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Contact USGS for details.
Contact USGS for Details