Title: Geologic map of Petroglyph National Monument and vicinity, Bernalillo County, New Mexico By Ren A. Thompson, Christine F. Chan, Amy K. Gilmer, and Ralph R. Shroba 2020 U.S. Geological Survey Scientific Investigations Map 3447 Data release available at https://doi.org/10.5066/P9LW817K ABSTRACT: This geologic map depicts and briefly describes geologic units underlying Petroglyph National Monument and immediately adjacent areas in Bernalillo County, New Mexico. The Monument is underlain dominantly by Quaternary basalts of the Albuquerque Volcanoes volcanic field, a series of basin- filling volcanic flows and associated vents from a monogenetic volcanic highland along the eastern margin of the Llano de Albuquerque. This compilation builds on data of previously published geologic maps and reports but includes new interpretive synthesis of volcanic stratigraphy and a unified representation of Quaternary surficial deposits overlying volcanic deposits within the Monument and areas immediately adjacent. This geologic map emphasizes the distribution of Quaternary volcanic vent areas and lava flow deposits which were incompletely mapped on previous publications. Surficial deposits are simplified, but uniformly mapped and described in contrast to varying map unit distributions, names and descriptions presented in the references above. Underlying deposits of the upper Santa Fe Group are exposed in the western part of the map area and described briefly. North-trending, syn- and post-eruption faulting is well preserved in the volcanic field and reflected in the subsurface models of aeromagnetic data. These faults are dominated by dip-slip displacement and are interpreted as extensional faults of the central Albuquerque Basin of the northern Rio Grande rift. Elongate distribution of vents for most of the volcanic deposits are spatially associated with the easternmost of these faults and are interpreted to reflect eruptions from fissures paralleling the regional extensional fault trends of the rift. DISCLAIMERS: This database, identified as SIM3447, has been approved for release by the U.S. Geological Survey (USGS). Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. 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 map for this report is located at and can be downloaded via the web from the U.S. Geological Survey publications website at https://doi.org/10.3133/sim3447. List of files: ReadMe.txt sim3447.pdf (geologic map, unit correlation chart, list of units, map explanation, accessory figures) sim3447_georeferenced.pdf (georeferenced geologic map, unit correlation chart, list of units, map explanation, accessory figures) How to Obtain the Digital Report Files: The map sheet can be obtained via the internet from the U.S. Geological Survey publications website. Go to the web page at https://doi.org/10.3133/sim3447 and follow the directions to download the files. 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 Georeferenced PDF File: To view map attribute data for map features in Adobe Acrobat, use the Object Data Tool. Suggested citation: Thompson, R.A., Chan, C.F., Gilmer, A.K., and Shroba, R.R., 2020, Geologic map of Petroglyph National Monument and vicinity, Bernalillo County, New Mexico: U.S. Geological Survey Scientific Investigations Map 3447, scale 1:24,000, https://doi.org/10.3133/sim3447. DATA FILES: The database contact is: Amy K. Gilmer 303-236-1636 agilmer.gov U.S. Geological Survey Box 25046, Mail Stop 980 Denver, CO 80225 Many of the geologic units and geologic features shown on the map and much of the text in the map-unit descriptions were modified from published geologic maps (Connell and others, 1998; Shroba and others, 2003; Connell, 2006; Thompson and others, 2009). New mapping, particularly along the eastern Monument boundary by R.A. Thompson in 2017–2018, was compiled and integrated into this compilation. The geospatial database that supports this work is formatted with the GeMS schema in ArcGIS and is zipped in a folder that is separate from the GeMS Data Dictionary (available as a *.CSV). Please refer to the ScienceBase location for these data: Petroglyph_metadata.xml Petroglyph_GeMS.gdb.zip Petroglyph_GeMS_DataDictionary.csv How to Obtain the Digital Data Files: The digital GIS files constituting the geologic map database of this report can be obtained from the U.S. Geological Survey via the Internet from ScienceBase. ScienceBase link: https://doi.org/10.5066/P9LW817K Suggested citation: Thompson, R.A., Chan, C.F., Gilmer, A.K., and Shroba, R.R., 2020, Geologic map of Petroglyph National Monument and vicinity, Bernalillo County, New Mexico: U.S. Geological Survey Scientific Investigations Map 3447, scale 1:24,000, https://doi.org/10.3133/sim3447. ArcReader may be downloaded free of charge from http://www.esri.com/software/arcgis/arcreader/download for viewing additional files included in this report. 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.