On this day in Lewis & Clark history...
The snow at Fort Mandan begins to melt as the temperature climbs above freezing. The men raise more of the fort's picket walls. Clark reports that nothing remarkable happened today.
From the journals...
20th December Thursday 1804
a moderate day, the Thermometr 37° above 0, which givs an oppertunity of putting up our pickets next the river, nothing remarkable took place to Day
Photo taken with permission at Fort Mandan.