Title: Elevation and Elevation-Change Maps of Fountain Creek, Southeastern Colorado, 2015–19 Prepared in cooperation with Colorado Springs Utilities By Laura A. Hempel 2020 U.S. Geological Survey Scientific Investigations Map 3456 Data release available at https://doi.org/10.5066/P9R00MWF ABSTRACT: The U.S. Geological Survey, in cooperation with Colorado Springs Utilities, has been collecting topographic data at 10 study areas along Fountain Creek, Colorado, annually since 2012. The 10 study areas are located between Colorado Springs and the terminus of Fountain Creek at the Arkansas River in Pueblo. The purpose of this report is to present elevation maps based on topographic surveys collected in 2015 and 2019 and to present maps of elevation change that occurred between 2015 and 2019 at all 10 study areas. Elevation and elevation-change maps were developed in ArcGIS from topographic surveys collected at each study area using real-time kinematic Global Navigation Satellite Systems during the winter months (January through April) of 2015 and 2019. Elevation-change maps were created using statistically defined minimum levels of change detection associated with the 68-percent confidence limit and the 95-percent confidence limit. Study areas along Fountain Creek underwent a range of geomorphic responses between 2015 and 2019 that often depended on the dominant channel pattern of the study area. The results of this ongoing monitoring effort can be used to assess long-term changes in land-surface elevation and to advance understanding of the geomorphic response to possible alterations in flow cnditions on Fountain Creek. DISCLAIMERS: Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty, expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute such warranty. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein. Any use of trade, product or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Geological Survey. Although this information product, for the most part, is in the public domain, it also may contain copyrighted material as noted in the text. Permission to reproduce copyrighted items for other than personal use must be secured from the copyright owner. REPORT FILES: The pamphlet and maps for this report are located at and can be downloaded from the web from the U.S. Geological Survey publications website at https://doi.org/10.3133/SIM3456. List of files: 00ReadMe_sim3456.txt sim3456_pamphlet.pdf sim3456_sheet1.pdf (four interactive data layers, aerial photographic base map, map explanation keyed to interactive data layers, and study area map) sim3456_sheet2.pdf (four interactive data layers, aerial photographic base map, map explanation keyed to interactive data layers, and study area map) sim3456_sheet3.pdf (four interactive data layers, aerial photographic base map, map explanation keyed to interactive data layers, and study area map) sim3456_sheet4.pdf (four interactive data layers, aerial photographic base map, map explanation keyed to interactive data layers, and study area map) sim3456_sheet5.pdf (four interactive data layers, aerial photographic base map, map explanation keyed to interactive data layers, and study area map) sim3456_sheet6.pdf (four interactive data layers, aerial photographic base map, map explanation keyed to interactive data layers, and study area map) sim3456_sheet7.pdf (four interactive data layers, aerial photographic base map, map explanation keyed to interactive data layers, and study area map) sim3456_sheet8.pdf (four interactive data layers, aerial photographic base map, map explanation keyed to interactive data layers, and study area map) sim3456_sheet9.pdf (four interactive data layers, aerial photographic base map, map explanation keyed to interactive data layers, and study area map) sim3456_sheet10.pdf (four interactive data layers, aerial photographic base map, map explanation keyed to interactive data layers, and study area map) sim3456_sheets1to10.pdf (10 map sheets are combined in one PDF file) The main product is a Portable Document Format (.pdf) map, which requires Adobe Acrobat for viewing. These Portable Document Format (PDF) files can be downloaded, from which paper copies may be printed. Acrobat software runs on a variety of systems, and is available for download free of charge from Adobe at http://www.adobe.com. How to View Data for Features in the Interactive PDF File: To view the different data layers, the maps must be downloaded and opened with a PDF viewer such as Adobe Acrobat Reader; there are known incompatabilities with the interactive functions and web browsers. When the map sheet is open in Adobe Acrobat Reader, four clickable buttons are listed in the upper right-hand box titled "Interactive Data Layers." Only one layer can be viewed at a time. The buttons are linked to the list of layers that can be viewed on the left-hand side of the program window. The "Measure" tool in Acrobat allows for measuring distances within the selected study area. The "Geospatial Location Tool" (activated with the "Measure" tool) will provide coordinates within the study areas. Suggested citation: Hempel, L., 2020, Elevation and elevation-change maps of Fountain Creek, southeastern Colorado, 2015–19: U.S. Geological Survey Scientific Investigations Map 3456, 10 sheets, 9 p., https://doi.org/10.3133/sim3456. This map is offered as an online-only, digital publication. Users should be aware that, because of differences in rendering processes and pixel resolution, some slight distortion of scale may occur when viewing it on a computer screen or when printing it on an electronic plotter, even when it is viewed or printed at its intended publication scale.