The Magallanes region in Chilean Patagonia has ca. 2.5 million ha of steppe, where the dominant plant species is the tussock grass (Festuca gracillima), which is used for extensive sheep production. The properties have an average of 4,000 ha, then remote sensing tools are necessary to determine plant communities, where high livestock stocking rates for grazing management have generated production losses. Therefore, determining the soil carbon contents in the steppe, depending on the intensity of grazing, would allow to generate management recommendations to sequester more carbon in the soil. Sampling was carried out in three farms under the same type of rangeland, with contrasting management in each farm for this rangeland: a tussock grass (F. gracillima) with low production and another with high production. Three repetitions were obtained per type of rangeland, in 3 soil depths (0-10, 10-20, and 20-30 cm). The carbon contained in the soil samples was analyzed through the muffle calcination method at 360°C for 16 h. The results showed that between 0-10 cm there are significant differences between managements, where the tussock grass with the lowest production had a carbon content of 7.00% while the one with the highest production was 8.38%. In the other soil profiles there are not differences between managements, the latter is important to concentrate works in the first soil profile. These results would allow the region's farms to be diagnosed through remote sensing (NDVI analysis), classifying the plant communities, and indicating in a simpler and more practical way, given the large surfaces, the rangelands with particular management that can sequester more carbon.