Updated 2023.09
https://www.gaiagps.com/map/?loc=14.8/-117.6366/33.8619&layer=GaiaTopoRasterFeet
https://transparentgov.net:3200/googlemaps110/default?layer_id=0&layer=Protected+Areas+Database+of+the+United+States+%28PAD-US%29+v3.0¢er_lat=19.579503844762367¢er_long=-155.88252102556362¢er_zoom=12&url=https%3A%2F%2Fgis.usgs.gov%2Fpadus%2Frest%2Fservices%2Fpadus3%2FFee_Managers%2FMapServer&overlayType=overlayType_image&panto=0&overlayOpacity=6&click_function=show_elevation
https://transparentgov.net/json2tree/esri/server/folder.html?url=https%3A%2F%2Fgis.usgs.gov%2Fpadus%2Frest%2Fservices&org=USGS+Protected+Areas+PAD%2C%26nbsp%3B%26nbsp%3B&cross=default&timeout=10000&select_folder=14&select_layer=0
1) USGS contour line
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1.1 large-scale contour line
1.2 small-scale contour line
2) My.GPS.Navigation
3) Google Terrain