Puttenham and Crooksbury Commons is a 113.8-hectare (281-acre) biological Site of Special Scientific Interest between Farnham and Guildford in Surrey.

[1][2] Puttenham Common is owned by the Hampton Estate and managed on behalf of Surrey County Council.

It was mentioned in a Sherlock Holmes short story, "The Adventure of the Solitary Cyclist", in which Holmes is called upon to solve a singularly interesting case involving Miss Violet Smith.

The fragments 'cruc' or 'crug' refer to burial mounds usually on a hill-top, which may pertain to fact there are earthworks on the flank of Crooksbury hill one of which is called Soldier's Ring.

There is a hill fort at Hillbury which is a scheduled monument, probably dating back to the Iron Age.