Nuyes Plumb 1972 Journal Chaco Experimental Station, 245 km N W Villa Hayes on Trans Chaco Hwy. Depto. Pte Hayes, Paraguay. 22 June By Km 245, The experimental station, saw a medium sized mustelid probably a grison, cross the road. Many road killed foxes - we saw at least 4 or 5, which seems like many considering that the nature of the road keeps auto speed down & that the road has been closed for several days. Also saw a crested caracara flying over palm swamp w. a mouse in its beak. Arrived at station 4:30 PM. Ing. Marchi is in charge w. Ing. Samudio of the Ministerio de agricultura & ganaderia up para visit. The station has 3000ha, of which 600ha have been cleared & are lightly grazed. Their main project now is to experiment a grasses, attempt to find one which suit the chaco peculiar soil, that can withstand grazing, & which provides adequate food year-round. The soil is an impermeable clay to a depth of 60cm, which is underlain by more permeable but very salty material. Not suitable for farming unless drastic treatment. The weather is hot & wet during the summer, & cool-cold (occasional frost) & drier during the winter. There is ~900mm rain. Due to the impermeability of the soil this stays