https://www.co.jackson.mi.us/1218/Falling-Waters-Trail

Connecting the Village of Concord with the City of Jackson, the trail was built on an abandoned stretch of the Michigan Central Railroad. The 10.5-mile, 12-foot-wide paved trail is ideal for walking, running, or biking. As it travels through natural springs and lakes that form the headwaters of four major Michigan rivers.

Mount Umunhum (Ohlone, meaning resting place of the hummingbird) is the fourth-highest peak in California's Santa Cruz Mountains (after Loma Prieta, Crystal Peak, and Mt. Chual). The mountain is situated in Santa Clara County, south of San Jose. Most of the mountain is within the Sierra Azul Open Space Preserve. The mountain is topped by an eight and a half story (84.5 feet tall) concrete radar tower (5 floors interior), known locally as "the Cube" or "the Box". The tower was part of Almaden Air Force Station, a radar surveillance post which operated from 1958 to 1980.