The 1836 structure was demolished in the late
1850s and the existing lighthouse was first lit
in 1858. The lamp produced a steady white light
visible for 14 nautical miles. The lighthouse
was placed on the National Register of Historic
Places in 1979. The Pottawatomie Lighthouse was
restored to the 1910 period through the efforts
of the Friends of Rock Island, DNR staff and
grants through the Wisconsin Department of
Natural Resources. Since 2004 the Friends of
Rock Island has staffed the lighthouse for
tours from Memorial Day Weekend through
Columbus Day weekend. The free guided tours are
provided by live-in volunteer docents. The
lighthouse is open for tours from 10 a.m. to 4
p.m. seven days a week. Donations are accepted
and a small gift shop sells items so renovation
and upkeep can continue.