If you have a Windows machine and already have a working version of GDAL on your machine, but would like to install an extra one using pip, you can use the following link to install the GDAL version of your choice and then run the following command from your activated virtual environment to install it correctly:

GDAL download repository: https://www.lfd.uci.edu/~gohlke/pythonlibs/#gdal

>> pip install path	oGDAL‑2.1.3‑cp27‑cp27m‑win32.whl

GDAL-2.1.3-cp27m-win32.whl is the name of the downloaded GDAL repository.