1961 Map of Rosilla Peak

About this map

The Pecos River valley carves through the heart of the Santa Fe National Forest in this early 1960s survey of San Miguel County. This era shows a landscape where small mountain settlements and seasonal ranching sites like Terrero and the Martin Ranch were connected by winding roads and jeep trails. The presence of the Jones Mine tucked into the northern ridges and the identified El Macho (Site) provides a look at the historical industrial and residential footprint within the high country. High elevation landmarks including Rosilla Peak and the prominent Viveash Mesa overlook a network of deep drainage systems like Macho Canyon and Dalton Canyon. The map records the precise locations of riverside hamlets such as Upper La Posada and Lower La Posada, reflecting the localized habitation patterns along the river bottom before later 20th-century developments changed the character of these mountain outposts.