On this day in Lewis & Clark history...
Clark records a temperature of 8° below 0. The Missouri River, which joins the Mississippi across from their winter camp on the Wood River, runs with ice.
From the journals...
Tuesday 17th Jany
a verry Cold morning, at 7 oClock the Thermometer in the air fall 8° below, 0,
a verry Cold night; the Missouris has fallen to day about 6 Inches, runs with Ice— Ice from Shore 20 yds in the river is 5½ Inches Thick—
Photo taken with permission at Fort Mandan.