2015 Map of Cold Spring

About this map

Reilly Heights sits atop the high ground above the Navarro River in this coastal Mendocino County landscape. The area is defined by a complex network of ridges and watercourses, including the prominent Greenwood Ridge and Cold Spring Mtn. Historically significant openings, such as Kane Opening, Hamilton Opening, and Brushy Opening, punctuate the forested terrain, likely serving as important landmarks for early navigation and land use. The drainage system is particularly dense here, with the S Fork Greenwood Cr and Three Springs Cr carving through the hills. This 2015 survey details a landscape where traditional road networks like Signal Ridge Rd and Holmes Ranch Rd follow the topography to connect these high-elevation points, reflecting the region's enduring rural character and its reliance on the natural geography for transit and settlement.