get_opentopo: Get a digital elevation model from the Open Topography SRTM...
In elevatr: Access Elevation Data from Various APIs

get_opentopo

R Documentation

Get a digital elevation model from the Open Topography SRTM Version 3

This function uses the Open Topography SRTM Version 3 files.

get_opentopo(locations, src, prj, expand = NULL, ...)

`locations`	Either a `data.frame` of x (long) and y (lat), an `sp`, an `sf`, or `raster` object as input.
`prj`	A valid input to `st_crs` If a `sf` object or a `terra` object is provided as the `locations`, the prj is optional and will be taken from `locations`. This argument is required for a `data.frame` of locations.
`expand`	A numeric value of a distance, in map units, used to expand the bounding box that is used to fetch the SRTM data.
`...`	Extra configuration parameters to be passed to httr::GET. Common usage is to adjust timeout. This is done as `config=timeout(x)` where `x` is a numeric value in seconds. Multiple configuration functions may be passed as a vector.