We present multi-telescope , ground-based , multiwavelength optical and near-infrared photometry of the variable L3.5 ultra-cool dwarf 2MASSW J0036159+182110 . We present 22 nights of photometry of 2MASSW J0036159+182110 , including 7 nights of simultaneous , multiwavelength photometry , spread over \sim 120 days allowing us to determine the rotation period of this ultra-cool dwarf to be 3.080 \pm 0.001 hr . Our many nights of multiwavelength photometry allow us to observe the evolution , or more specifically the lack thereof , of the light curve over a great many rotation periods . The lack of discernible phase shifts in our multiwavelength photometry , and that the amplitude of variability generally decreases as one moves to longer wavelengths for 2MASSW J0036159+182110 , is generally consistent with starspots driving the variability on this ultra-cool dwarf , with starspots that are \sim 100 degrees K hotter or cooler than the \sim 1700 K photosphere . Also , reasonably thick clouds are required to fit the spectra of 2MASSW J0036159+182110 , suggesting there likely exists some complex interplay between the starspots driving the variability of this ultra-cool dwarf and the clouds that appear to envelope this ultra-cool dwarf .