I loaded the first level of Raiders of the Lost Ark,
which has three dig sights that can be accessed in about a minute,
one is directly behind you when you start the other two are in front of you look for the glowing objects in the dirt!
there is also a a dig sight in the college that can be acsessed
located inside Indi's office
4 digs a run
should take 10 runs depending on how far you are in the campaign
If you vote negative; please leave a comment stating how I can improve this guide!!!!