title: Plotting a terrain basemap in R with ggplot (without a Google API key)
body: <p>I am looking to create a basic terrain base map of the Northern Hemisphere to later add lat, long points to. I don't want to use Google Cloud services to do this with an API, but I can't find a reliable way to plot a base map without requiring an API key. I have tried the 'basemapR' package with little success below:</p>
  <pre><code>#devtools::install_github('Chrisjb/basemapR')
  library(sf)
  library(spData)
  library(ggplot2)
  library(basemapR)
  
  world_data = spData::world
  
  ggplot() +
    base_map(st_bbox(world_data),basemap = 'hydda', increase_zoom = 2) +
    geom_sf(data = world_data, col = 1, fill = NA)+
    coord_sf(xlim = c(-150,128), ylim = c(17,70))
  </code></pre>
  <p>I get the following error:</p>
  <blockquote>
  <p>Error in curl::curl_download(url, destfile = tmp) :
  Timeout was reached: [] Connection timed out after 10001 milliseconds</p>
  </blockquote>
  <p>I am open to other methods of getting a terrain base map and I am reaching out because I feel like this should have a simple solution that I cannot find. Thanks for your help!</p>