Specificity on resumes

[lula43]

My resume is currently two pages long. In part this is due to the fairly thorough explanation of some of the programs I have been involved in. Is this necessary? For example, is stating "The x Scholarship in x x" enough to represent an extensive, two year study abroad program I was apart of? Or is it appropriate for me to succinctly explain what it entailed? I am trying to restructure my resume based on the samples on Harvard's website but am finding it pretty difficult. Any thoughts on this?