Installation is unfortunately complicated due to the difficulty in installing GDAL. These are the steps that have been successfully tested on Linux and OSX.
1. Install Anaconda or Miniconda with Python 3.5
2. Create a new environment to ensure that the installed package is not going to collide with existing packages
``conda create --name <somename> python=3``
3. Ensure that the `conda-forge` channel is added to your conda config. For instructions, see: https://conda.io/docs/user-guide/tasks/manage-channels.html
4. Install ``plio`` with ``conda install -c usgs-astrogeology plio``.