The 2016-2017 winter season dropped plenty of snow in the Rockies. For years, the decade and a half drought across southern Nevada and the lower Colorado River Basin has impacted water levels at Lake Mead, creating what locals have long dubbed “the bathtub ring.” Nevada is still considered to be in a drought, but the accumulation in snowpacks has experts hopeful about the health of Lake Mead.  However, the state’s not out of the clear.