Munros Mountains over 3,000 feet, 282 in total, Corbetts  are between 2,500ft to 3,000ft  with a drop of 500ft on all sides. there are  221 Corbetts,

 Grahams  between 2000ft-2500ft in height and with a drop of 150m on all sides, 224 Grahams.

Donalds have a  height of 2000ft and over and with 'prominence of 100ft or more. There are 89 

Marylins any hill in the UK and Ireland with a drop of 150m on all sides. There are 1218 Marilyns in Scotland