1964 Map of Rio Grande Pyramid

About this map

Rio Grande Pyramid dominates the high-altitude landscape of the eastern San Juan Mountains in this mid-1960s survey. The Continental Divide winds through the southeastern portion of the quadrangle, serving as a natural barrier and a key reference for the high-country travel routes of the era. The terrain is defined by a dense network of high-elevation water sources, including Ute Lake, Middle Ute Lake, and the clusters of Twin Lakes and Flint Lakes that feed into the headwaters of Ute Creek and the Rio Grande.