{"id":770820,"date":"2026-01-20T13:44:45","date_gmt":"2026-01-20T21:44:45","guid":{"rendered":"https:\/\/www.esri.com\/about\/newsroom\/?post_type=arcwatch&#038;p=770820"},"modified":"2026-01-20T13:44:45","modified_gmt":"2026-01-20T21:44:45","slug":"map-the-highest-mountains","status":"publish","type":"arcwatch","link":"https:\/\/www.esri.com\/about\/newsroom\/arcwatch\/map-the-highest-mountains","title":{"rendered":"Map the Highest Mountains"},"content":{"rendered":"","protected":false},"author":5342,"featured_media":0,"menu_order":0,"template":"","format":"standard","meta":{"_acf_changed":false,"sync_status":"","episode_type":"","audio_file":"","castos_file_data":"","podmotor_file_id":"","cover_image":"","cover_image_id":"","duration":"","filesize":"","filesize_raw":"","date_recorded":"","explicit":"","block":"","itunes_episode_number":"","itunes_title":"","itunes_season_number":"","itunes_episode_type":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[91],"tags":[163382,493331,152212,152422],"arcwatch_issues":[493319],"class_list":["post-770820","arcwatch","type-arcwatch","status-publish","format-standard","hentry","category-mapping","tag-arcgis-online","tag-feature-layer","tag-mountains","tag-web-map","arcwatch_issues-january-2026","arcwatch_sections-the-tip"],"acf":{"short_description":"Reach new heights. Learn how to create and add a feature layer to an interactive web map in ArcGIS Online.","pdf":{"host_remotely":false,"file":"","file_url":""},"flexible_content":[{"acf_fc_layout":"content","content":"A web map in\u00a0ArcGIS Online\u00a0is an interactive map that displays geographic information to tell stories and answer questions. Web maps are built from layers\u2014or geographic data used to create maps\u2014and can share information with a wide audience. Geographic data represented as points, lines, or polygons, are called features and are grouped in feature layers.\r\n\r\nIn this tutorial, you\u2019ll create an interactive web map of the five highest mountains in the world. First, you\u2019ll create a feature layer from a\u00a0.csv\u00a0file. Then, you\u2019ll add the feature layer to a web map. You can create this web map in\u00a0ArcGIS Online\u00a0or ArcGIS Enterprise.\r\n\r\nIn this tutorial, you will learn to:\r\n<ul>\r\n \t<li>Create a feature layer from a\u00a0.csv\u00a0file.<\/li>\r\n \t<li>Set a basemap for your web map.<\/li>\r\n \t<li>Add your layer to the web map.<\/li>\r\n<\/ul>\r\n<h3><strong>Requirements<\/strong><\/h3>\r\n<ul>\r\n \t<li>Publisher or Administrator role in an ArcGIS organization:\u00a0ArcGIS Online\u00a0(<a href=\"https:\/\/learn.arcgis.com\/en\/become-a-member\/\">see options for software access<\/a>\u00a0or learn about\u00a0<a href=\"https:\/\/www.esri.com\/en-us\/industries\/education\/schools\/schools-mapping-software-bundle\">free ArcGIS education licensing for K\u201312 instructional use<\/a>)\u00a0or\u00a0ArcGIS Enterprise\u00a0(<a href=\"https:\/\/mediaspace.esri.com\/embed\/secure\/iframe\/entryId\/1_2fdboaaq\/uiConfId\/49806163\/st\/0\">learn more<\/a>).<\/li>\r\n<\/ul>\r\n<h3><strong>Prepare the Mountain Data<\/strong><\/h3>\r\nFirst, you will prepare a text file with data about five of the highest mountains in the world. Then, you will create a feature layer from this file.\r\n\r\nYou can create a feature layer from data saved in a comma-separated values (CSV) format text file (.csv). A\u00a0.csv file has a row of data for each item with a comma between each value. The first row in the file contains the field names, which describe the type of data in the file.\r\n\r\nThe fields you\u2019ll include for this file are:\r\n<ul>\r\n \t<li>The\u00a0<strong>lat<\/strong>\u00a0field, which contains the latitude of the mountain.<\/li>\r\n \t<li>The\u00a0<strong>lon<\/strong>\u00a0field, which contains the longitude of the mountain.<\/li>\r\n \t<li>The\u00a0<strong>name<\/strong>\u00a0field, which contains the name of the mountain.<\/li>\r\n \t<li>The\u00a0<strong>range<\/strong>\u00a0field, which contains the parent range of the mountain.<\/li>\r\n \t<li>The\u00a0<strong>elev_ft<\/strong>\u00a0field, which contains the elevation of the mountain in feet.<\/li>\r\n \t<li>The\u00a0<strong>thumb_url<\/strong>\u00a0field, which includes a URL to an image of the mountain.<\/li>\r\n \t<li>The\u00a0<strong>photo_credit<\/strong>\u00a0field, which includes a URL to the source of the image of the mountain.<\/li>\r\n<\/ul>\r\nTo appear on a map, each real-world item detailed in the file must include location data. In your text file, the first two fields contain the latitude and longitude of each mountain. After the first row, each subsequent row contains data about one mountain. Your text file will contain six rows: one for the field names and five for the mountains you\u2019ll map.\r\n\r\n1. Copy the following data into a plain text editing or spreadsheet application, such as Notepad, Notepad++, Microsoft Excel, or a similar program:\r\n\r\n<strong>Note:<\/strong> If you use Microsoft Excel, you need to use Paste Special tool and choose Paste As Text to separate the rows on the sheet. Also, you must be sure to save the file as a .csv.\r\n\r\nlat,lon,name,range,elev_ft,thumb_url,photo_credit\r\n\r\n27.9879,86.9250,Mt. Everest,Himalayas,29029,https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/d\/d1\/Mount_Everest_as_seen_from_Drukair2_PLW_edit.jpg\/640px-Mount_Everest_as_seen_from_Drukair2_PLW_edit.jpg,https:\/\/commons.wikimedia.org\/wiki\/File:Mount_Everest_as_seen_from_Drukair2_PLW_edit.jpg\r\n\r\n35.8825,76.513333, K2Chogori,Karakoram,28251,https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/c\/c9\/Chogori.jpg\/640px-Chogori.jpg,https:\/\/commons.wikimedia.org\/wiki\/File:Chogori.jpg\r\n\r\n27.7025,88.1475,Kangchenjunga,Himalayas,28169,https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/1\/19\/Kangchenjunga_India.jpg\/960px-Kangchenjunga_India.jpg,https:\/\/commons.wikimedia.org\/wiki\/File:Kangchenjunga_India.jpg\r\n\r\n27.9626,86.9336,Lhotse,Himalayas,27940,https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/7\/72\/Lhotse-fromChukhungRi.jpg\/640px-Lhotse-fromChukhungRi.jpg,https:\/\/commons.wikimedia.org\/wiki\/File:Lhotse-fromChukhungRi.jpg\r\n\r\n27.8860,87.0912,Makala,Himalayas,27766,https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/1\/19\/Makalu.jpg\/640px-Makalu.jpg,https:\/\/commons.wikimedia.org\/wiki\/File:Makalu.jpg\r\n\r\n2. Save the file on your computer with the name <em>mountains.csv<\/em>.\r\n<h3><strong>Open and Save a Map<\/strong><\/h3>\r\nNext, you will open a map in\u00a0Map Viewer, change the basemap, and save the map.\r\n\r\n1. Sign in to your <a href=\"https:\/\/www.arcgis.com\/home\/signin.html\">ArcGIS organizational account <\/a>or ArcGIS Enterprise\u00a0account.\r\n\r\n2. On the ribbon, click <strong>Map<\/strong>. A new map appears with your organization\u2019s default basemap. The map does not currently contain any layers."},{"acf_fc_layout":"image","image":770823,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"First, you will change the basemap. A basemap provides a background of geographic context for the content you want to display on a map.\r\n\r\n3. On the <strong>Contents <\/strong>(dark) toolbar, click\u00a0<strong>Basemap, <\/strong>then choose\u00a0<strong>Charted Territory Map<\/strong>.\r\n\r\n<strong>Note:<\/strong> Some ArcGIS organizations may have different default basemaps. If you don\u2019t see the\u00a0<strong>Charted Territory Map<\/strong>\u00a0basemap, scroll to the end of the list and click\u00a0<strong>Living Atlas<\/strong>. Search for\u00a0\u201cCharted Territory\u201d\u00a0and add the\u00a0<strong>Charted Territory Map<\/strong>\u00a0web map to your list of basemaps."},{"acf_fc_layout":"image","image":770824,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"The basemap changes to\u00a0<strong>Charted Territory<\/strong>."},{"acf_fc_layout":"image","image":770825,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"4. In the <strong>Basemap <\/strong>pane, click the \u201cX\u201d to\u00a0<strong>Close<\/strong>."},{"acf_fc_layout":"image","image":770826,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"5. Before you continue, save the map. On the <strong>Contents<\/strong> (dark) toolbar, click\u00a0<strong>Save and open<\/strong>,\u00a0and choose\u00a0<strong>Save as<\/strong>.\r\n\r\nThe Save map window appears."},{"acf_fc_layout":"image","image":770827,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"6. In the Save map window, for <strong>Title<\/strong>, type <em>Map the highest mountains<\/em> and add your initials.\r\n\r\n7. For <strong>Tags<\/strong>, type\u00a0<em>Elevation<\/em>,<em> Peaks<\/em>, and <em>Himalayas<\/em>,\u00a0and press\u00a0Enter.\r\n\r\n8. For <strong>Summary<\/strong>, type\u00a0<em>Information about the highest mountains in the world<\/em>."},{"acf_fc_layout":"image","image":770828,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"9. Click <strong>Save<\/strong>.\r\n\r\nThe map is saved to your\u00a0ArcGIS Online\u00a0account. Save your web map regularly so you don\u2019t lose any changes.\r\n<h3><strong>Add Mountain Data to the Map<\/strong><\/h3>\r\nYou\u2019ll add the mountains.csv file you created earlier to your map.\r\n\r\n1. On the <strong>Contents<\/strong> (dark) toolbar, click<strong> Layers<\/strong>. The\u00a0<strong>Layers <\/strong>pane opens."},{"acf_fc_layout":"image","image":770830,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"2. In the <strong>Layers <\/strong>pane, click the down arrow next to\u00a0<strong>Add <\/strong>and choose\u00a0<strong>Add layer from file<\/strong>."},{"acf_fc_layout":"image","image":770831,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"The <strong>Add layer<\/strong> window opens.\r\n\r\n3. Drag the moutains.csv file from its location on your device onto the <strong>Add Layer <\/strong>drop area."},{"acf_fc_layout":"image","image":770832,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"The <strong>Add Layer<\/strong> window updates to ask if you would like to create a hosted feature layer from the file or upload the file as an item. A hosted feature layer is a feature layer that is available online through your ArcGIS account.\r\n\r\n4. Select <strong>Create a hosted feature layer and add it to the map<\/strong> and click\u00a0<strong>Next<\/strong>."},{"acf_fc_layout":"image","image":770833,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"You can publish your maps and data as hosted layers to\u00a0ArcGIS Online, which will host your layers and the data that populates them.\r\n\r\nThe window updates to show detected fields in the\u00a0.csv\u00a0file.\r\n\r\n5. On the <strong>Fields <\/strong>page, confirm that the text in the\u00a0<strong>Display name <\/strong>and\u00a0<strong>Type<\/strong>\u00a0fields is accurate and click\u00a0<strong>Next<\/strong>.\r\n\r\n6. On the <strong>Location settings <\/strong>page, click the down arrow in the box and select Latitude and Longitude from the drop-down menu. Confirm\u00a0<strong>Latitude <\/strong>is set to the field\u00a0<strong>lat<\/strong>\u00a0and\u00a0<strong>Longitude<\/strong>\u00a0is set to the field\u00a0<strong>long<\/strong>. Click\u00a0<strong>Next<\/strong>.\r\n\r\n7. On the next page, for <strong>Title<\/strong>, replace the existing text with\u00a0<em>highest mountains<\/em>, followed by your initials (for example,\u00a0highest mountains YN). Optionally, you may include\u00a0<strong>Tags <\/strong>and a\u00a0<strong>Summary<\/strong>.\r\n\r\n<strong>Note:<\/strong> You cannot create two layers in an ArcGIS organization with the same name. Adding your initials to a layer name ensures that other people in your organization can also complete this tutorial. Once a layer has been created, you can rename it in the map to remove your initials, which will not affect the name of the underlying data layer."},{"acf_fc_layout":"image","image":770834,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"8. Click <strong>Create and add to map<\/strong>.\r\n\r\nThe layer is added to the map and to your\u00a0ArcGIS Online\u00a0contents list. You can navigate to the\u00a0<a href=\"https:\/\/doc.arcgis.com\/en\/arcgis-online\/get-started\/item-details.htm#ESRI_SECTION1_70EF6B197E6E47078BA7F5694EF9A2D7\">item details page<\/a>\u00a0of the layer and add or update the layer information. This page shows what the item contains and how to use it.\r\n\r\n<strong>Tip:<\/strong> You may need to zoom in to see all five symbols because four are located close together in Nepal. If necessary, click\u00a0<strong>Properties<\/strong>\u00a0on the\u00a0<strong>Settings<\/strong>\u00a0(light) toolbar to close the Properties pane to see more of the map."},{"acf_fc_layout":"image","image":770836,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"9. Next, you\u2019ll change the symbols to better represent the mountains. Symbols in the shape of triangles are more appropriate.\r\n\r\nIn the <strong>Layers <\/strong>pane, ensure the <strong>highest mountains<\/strong> layer is selected. A blue line appears next to the layer to indicate that it is selected.\r\n\r\n10. On the <strong>Settings <\/strong>(light) toolbar, click\u00a0<strong>Styles<\/strong>. The\u00a0<strong>Styles <\/strong>pane appears."},{"acf_fc_layout":"image","image":770837,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"11. In the <strong>Styles <\/strong>pane and under\u00a0<strong>Pick a style<\/strong>, go to\u00a0<strong>Location (single symbol)<\/strong> and click\u00a0<strong>Style options<\/strong>."},{"acf_fc_layout":"image","image":770838,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"12. In the\u00a0<strong>Style options<\/strong>\u00a0pane, click the box under\u00a0<strong>Symbol style<\/strong>."},{"acf_fc_layout":"image","image":770839,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"The\u00a0<strong>Symbol style<\/strong>\u00a0pane appears.\r\n\r\n13. In the <strong>Symbol style <\/strong>pane, click the box under\u00a0<strong>Current symbol<\/strong>."},{"acf_fc_layout":"image","image":770840,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"14. In the <strong>Change symbol <\/strong>pane, click the triangle and click\u00a0<strong>Done<\/strong>."},{"acf_fc_layout":"image","image":770841,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"15. For <strong>Size<\/strong>, type\u00a030\u00a0and press\u00a0Enter."},{"acf_fc_layout":"image","image":770842,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"16. Click <strong>Fill color<\/strong>, and in the\u00a0<strong>Select color <\/strong>window that appears, choose a black color."},{"acf_fc_layout":"image","image":770843,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"17. Click <strong>Done <\/strong>and close the\u00a0<strong>Symbol style <\/strong>pane.\r\n\r\nThe symbols on the map change to black triangles."},{"acf_fc_layout":"image","image":770845,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"18. On the <strong>Styles <\/strong>pane, click\u00a0<strong>Done <\/strong>two times.\r\n\r\n19. On the <strong>Contents <\/strong>toolbar, click\u00a0<strong>Save and open <\/strong>and choose\u00a0<strong>Save<\/strong>\u00a0to save the map.\r\n\r\n&nbsp;\r\n\r\nIn this tutorial, you saved data about mountains as a text file. Then, you added the file to\u00a0ArcGIS Online\u00a0to create a layer in a map locating each mountain.\r\n\r\nAcknowledgments:\r\n<ul>\r\n \t<li>The information about mountains is from the\u00a0<a href=\"https:\/\/en.wikipedia.org\/\">Wikipedia<\/a>\u00a0article,\u00a0\u201c<a href=\"https:\/\/en.wikipedia.org\/wiki\/List_of_highest_mountains_on_Earth\">List of highest mountains on Earth<\/a>\u201d<\/li>\r\n \t<li><a href=\"https:\/\/www.arcgis.com\/home\/item.html?id=d582a9e953c44c09bb998c7d9b66f8d4\">Charted Territory Map<\/a>\u00a0sources:\u00a0Esri, TomTom, Garmin, FAO, NOAA, USGS, OpenStreetMap contributors, and the GIS User Community<\/li>\r\n<\/ul>\r\n&nbsp;\r\n\r\nVisit the Esri\u00a0<a href=\"https:\/\/learn.arcgis.com\/en\/gallery\/\">tutorial gallery<\/a>\u00a0to explore additional topics and find other step-by-step workflows on a variety of products."}],"references":null},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.9 (Yoast SEO v25.9) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Map the Highest Mountains<\/title>\n<meta name=\"description\" content=\"Reach new heights. 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