Arkansas Post National Memorial Located in Gillett, AR TRAVEL BASICS - CAMPING - LODGING ACTIVITIES - FACILITIES - FEES/PERMITS This replica cross commemorates the founding of Arkansas Post by Henri de Tonti (NPS Photo) IN BRIEF In 1686, Henri de Tonti established a trading post known as Poste de Arkansea at the Quapaw village of Osotouy. It was the first semi-permanent French settlement in the ...