United States, Arkansas, Chicot, Brown's Crossing vicinity , 0.8 miles north of Louisiana on Arkansas Hwy. 159; T19S R3W S28 NE4 of NE4 of SE4 at road intersection.
33.015691 -91.307332 +-155m. WGS84
Used ESRI USGS Topo USA (faster) map, located T19S R3W S28 NE4 NE4 SE4. Placed point here. Used Google Streets map, confirmed intersection of Hwys 84 and 159 at this point. Confirmed measurement from LA state line, as well.