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|**HOME**                | **Data**This digital database was originally compiled in ArcInfo coverage format with ArcInfo version 7.2.1.  The database was upgraded for this release to ArcGIS 9.3.1 personal geodatabase format and consists of feature datasets containing geologic map feature classes for each of the three printed map plates (see PLOTFILES section) from U.S. Geological Survey Professional Paper 729-G.  ArcGIS-compatible GIS software is therefore required to use the files of this database.  The geodatabase is stored in a single zipped folder (PP729-G.zip) in this release for ease of transfer.  The scale of the source maps limits the spatial resolution (scale) of the database to 1:125,000 or smaller for Plates 1 and 2, and 1:500,000 or smaller for Plate 3.  Available ArcGIS feature classes, organized by Plate 1, 2, and 3 feature datasets are described below:**ArcGISfeature class**
**Description****PLATE 1**
**Geologic Map of the Yellowstone Plateau Area**drill_holes
Drill hole locations (points)geologic_lines
Contacts and faults (lines)geologic_polys
Rock units (polygons)hyd_alteration
Areas of hydrothermal alteration (polygons)lava_forms
Lava-flow fronts and forms (lines)sample_locs
Sample locations (points)strike_dip
Strike and dip measurement locations and values (points)volcanic_vents
Volcanic vents (points)YNP_border
Yellowstone National Park boundary (lines)**PLATE 2**
**Geologic Map of the Island Park Area, Yellowstone Region**geologic_lines2
Contacts and faults (lines)geologic_polys2
Rock units (polygons)sample_locs2
Sample locations (points)volcanic_vents2
Volcanic vents (points)**PLATE 3**
**Upper Cenozoic Geologic Map, Yellowstone Plateau Volcanic Field**

geologic_lines3
Contacts and faults (lines)geologic_polys3
Rock units (polygons)Download PP729-G.zip containing the digital database.Federal Geographic Data Committee (FGDC) metadata are available for the digital geologic map plates (Plate 1, Plate 2, and Plate 3) in text format. | **ArcGISfeature class** | **Description** | **PLATE 1** | **Geologic Map of the Yellowstone Plateau Area** | drill_holes | Drill hole locations (points) | geologic_lines | Contacts and faults (lines) | geologic_polys | Rock units (polygons) | hyd_alteration | Areas of hydrothermal alteration (polygons) | lava_forms | Lava-flow fronts and forms (lines) | sample_locs | Sample locations (points) | strike_dip | Strike and dip measurement locations and values (points) | volcanic_vents | Volcanic vents (points) | YNP_border | Yellowstone National Park boundary (lines) | **PLATE 2** | **Geologic Map of the Island Park Area, Yellowstone Region** | geologic_lines2 | Contacts and faults (lines) | geologic_polys2 | Rock units (polygons) | sample_locs2 | Sample locations (points) | volcanic_vents2 | Volcanic vents (points) | **PLATE 3** | **Upper Cenozoic Geologic Map, Yellowstone Plateau Volcanic Field** | geologic_lines3 | Contacts and faults (lines) | geologic_polys3 | Rock units (polygons)
|----------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------- | --------------- | ----------- | ------------------------------------------------ | ----------- | ----------------------------- | -------------- | --------------------------- | -------------- | --------------------- | -------------- | ------------------------------------------- | ---------- | ---------------------------------- | ----------- | ------------------------- | ---------- | -------------------------------------------------------- | -------------- | ----------------------- | ---------- | ------------------------------------------ | ----------- | ------------------------------------------------------------ | --------------- | --------------------------- | --------------- | --------------------- | ------------ | ------------------------- | --------------- | ----------------------- | ----------- | ------------------------------------------------------------------- | --------------- | --------------------------- | --------------- | ---------------------
|**ArcGISfeature class** | **Description**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|**PLATE 1**             | **Geologic Map of the Yellowstone Plateau Area**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|drill_holes             | Drill hole locations (points)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|geologic_lines          | Contacts and faults (lines)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|geologic_polys          | Rock units (polygons)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|hyd_alteration          | Areas of hydrothermal alteration (polygons)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|lava_forms              | Lava-flow fronts and forms (lines)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|sample_locs             | Sample locations (points)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|strike_dip              | Strike and dip measurement locations and values (points)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|volcanic_vents          | Volcanic vents (points)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|YNP_border              | Yellowstone National Park boundary (lines)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|**PLATE 2**             | **Geologic Map of the Island Park Area, Yellowstone Region**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|geologic_lines2         | Contacts and faults (lines)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|geologic_polys2         | Rock units (polygons)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|sample_locs2            | Sample locations (points)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|volcanic_vents2         | Volcanic vents (points)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|geologic_lines3         | Contacts and faults (lines)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|geologic_polys3         | Rock units (polygons)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|**INTRODUCTION**       
|**DATA**               
|**PLOTFILES**          

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