Unlike our Solar System's planet population, we have discovered over 2000 exoplanets with sizes between Earth and Neptune. This 'LittleBig' exoplanet population includes Super-Earths and Mini-Neptunes and simultaneously represents the most populous category of known exoplanets as well as the least understood. We have developed a process to characterize the atmospheres of LittleBig exoplanets using transit observations from the 2.3 m Wyoming Infrared Observatory (WIRO). Over the 2017 Summer, the University of Wyoming will host an undergraduate research program to do novel characterization of forty LittleBig exoplanet atmospheres. These observations will more than triple the number of characterized LitttleBig exoplanet atmospheres.