1990 Map of Mosquito Flat

About this map

Peabody Homestead and Whiting Ranch anchor this high-desert landscape in Harney County, illustrating the isolated character of late 20th-century ranching life within the Malheur National Forest. The terrain is defined by prominent basaltic features and seasonal water sources, where the Silvies River winds through the northern reaches near Rimrock Spring. The presence of several family-named landmarks, such as Groff Ranch and Peabody Spring, suggests a history of localized land use centered on available water in an otherwise arid environment.