Northern peatlands are generally thought to be resilient to disturbance by means of several autogenic ecohydrological feedbacks that regulate the water table (WT) depth in response to water deficit or excess. However, not all peatlands are created equal and there remain research gaps as to how strong these feedbacks operate in relation to peatland characteristics, namely peatland depth as well as their catchments. Recent research suggests shallower peatlands experience more severe WT drawdown, and thus greater moisture stress and potential depth of burn in the event of wildfire. In this work, peatlands spanning a range of depths and landscape positions were hydrologically monitored to elucidate the spatiotemporal controls on peat water storage. These geographically isolated wetlands (GIWs) of the Boreal Shield serve a number of unique hydrological, geochemical and ecological functions so relevant metrics to these, such as hydroperiod and fill-and-spill thresholds were a focus. We assessed the relative strength of internal and landscape level processes on peat water storage and quantify WT drawdown rates as have shown relevant to wildfire vulnerability. Additionally, the elasticity of peat water storage is characterized based on seasonal changes in peat surface elevation as a means of evaluating the WT-peat deformation feedback.