This library provides access to the GDAL library (http://www.gdal.org/). It
provides both direct, low-level access to GDAL and OGR library functions as
well as a higher level, more OCaml-like interface.

The API is viewable here.

Using the bindings

Linking to the underlying GDAL library is performed at runtime.
To initialize:

Gdal.Lib.init_dynamic ();

The init_dynamic function takes an optional ~lib argument which may be
used to specify the specific shared object to link against. It defaults to
libgdal.so.