Field schools occur all over the world and many US universities run field schools
Field schools can focus on certain topics (e.g., geoarchaeology) so consider what you would like to learn
Look for a field school that offers 6-10 credit hours
< five and you may not be in the field long enough to learn the techniques properly
You should expect to earn 1 credit for each week in the field
Costs for field schools vary depending on location and lodging
Expect to pay for tuition, transportation to the field school area, and a food/lodging fee
Field schools are an excellent way to learn archaeological techniques and scientific methods, even if you are not sure you want to be a professional archaeologist!
Field schools are required preparation for paid employment in archaeology . . .
Applications will generally be due from Feb 1-April 1 so do not delay. Plan and research now!
Much information is available on-line . . .
type "Archaeology Field School 2008" or "Archaeological Field School 2008" into a search engine