First Aid Kits

General Hiking and Backpacking

A good first aid kit is one of the 10 essentials of hiking. Washington Trails Association has a great page with resources.

Trail Crews

A larger version of the above and might want to consider adding an Automated External Defilibrator (AED) for large multi-day projects.

Chainsaw Crews

Chainsaws injuries can create massive bleeding issues and need some specialized items. OSHA has specifications for loggers which your kit should conform to. Pressure on the wound is the primary control technique. Examples (search on the web for more) (cheaper in large quantities):

Incident report forms

Print and put in your first aid kit in a waterproof baggie.