Io Landscape Architecture prepared a National Register nomination and a Historic American Landscapes Survey (HALS) report for the City of Fillmore on their historic cemetery. The documentation was funded by a Certified Local Government (CLG) grant, from the Utah State Historic Preservation Office, that was matched by Fillmore City funds. Fillmore served briefly as the territorial capitol of Utah.
The 12.6-acre Fillmore City Cemetery was begun on March 20, 1852 with the burial of nineteen-month old Leroy King on a site southwest of downtown Fillmore. The cemetery is significant for its association with events in Utah history, historic gravestones showcasing the skill of local stone carvers, and as an example of the adaptation of cemetery design trends in Plat of Zion Mormon villages. It was the only Utah cemetery listed on the National Register of Historic Places at the time it was listed.