I attended SRAP in the summer after my junior year (2013), and, I must say, it was one of the best experiences of my life (not exaggerating). I believe application process involved test scores, an essay, and letters of rec. When/if you got in, you have to fill out quite a bit of paperwork, but it was all worth it. They paid for room and board, and I made $2000 (!!!). Plus there were weekend excursions to Denver (we stayed at a hotel overnight and went to the zoo and aquarium at no cost to us; they handled food too!) and a hiking trip in the mountains (got to see snow in summer). Evenings and weekends are your free time (I suggest exploring Laramie), and I still remain good/great friends with my fellow SRAPers to this day (they also went to some of the best schools in the nation, such as Yale, MIT, and Stanford; I attend UF on a full scholarship). You work/research 8 hours a day, 5 days a week, but the strenuousness of that schedule really depends on your research mentor. In the end, I wrote a 15-page paper and gave a presentation in front of fifty people. A great, relatively obscure program that pays both financially, academically, socially, and experientially!