A powerful Union infantry task
force, screened by three companies of 2nd Illinois Cavalry, reached
Big Sand Creek during the late afternoon of May 5, 1863, en route to
capture four steamboats reportedly tied up at Halls Ferry (about 11.5
road miles to the north-northeast). Just north of the creek, the cavalry
screen was fired on by a Confederate patrol. Lt. Isaiah Stickel led
his Illinois cavalry in a saber-swinging charge, riding over the Confederate
horsemen, killing 12, and capturing 30. However, some of the Confederates,
including their commander, Lt. W. L. Cromwell, escaped. With surprise
gone, Brig. Gen. Peter Osterhaus knew there was no hope of capturing
the steamboats. Because it was growing dark, the Union force bivouacked
for the night in the bottoms along the creek.