  Using Spitzer Space Telescope and Chandra X-ray Observatory data, we identify
YSOs in the Rosette Molecular Cloud (RMC). By being able to select cluster
members and classify them into YSO types, we are able to track the progression
of star formation locally within the cluster environments and globally within
the cloud. We employ nearest neighbor method (NNM) analysis to explore the
density structure of the clusters and YSO ratio mapping to study age
progressions in the cloud. We find a relationship between the YSO ratios and
extinction which suggests star formation occurs preferentially in the densest
parts of the cloud and that the column density of gas rapidly decreases as the
region evolves. This suggests rapid removal of gas may account for the low star
formation efficiencies observed in molecular clouds. We find that the overall
age spread across the RMC is small. Our analysis suggests that star formation
started throughout the complex around the same time. Age gradients in the cloud
appear to be localized and any effect the HII region has on the star formation
history is secondary to that of the primordial collapse of the cloud.
