text: import plotly.express as px
  import pandas as pd
  
  df = pd.read_csv('AllTheTors_grid_ref.csv')
  
  SIZE = 10
  df['size'] = SIZE
  
  # plot the map
  fig = px.scatter_mapbox(df, lat="latitude",
                              lon="longitude",
                              text='Number',
                              # hover_name='Tor',
                              # hover_data=['Grid', 'Number'],
                              size='size',
                              size_max=SIZE,
                              color='Completed',
                              zoom=10,
                              width=600,
                              height=950,
                              center={"lat": 50.56552, "lon": -3.956112},
                              title='All The Tors Challenge'
                              
                              )
  fig.update_layout(mapbox_style='open-street-map')
  fig.show()