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.

Submitted by Jason Hardrath:

As one of the longest multipitch and most highly rated easy-moderate routes of Joshua Tree National Park, “Right On” 5.5yds, is a natural choice for a car-to-car speed effort in the park.

Check Mountain Project for descriptions of the pitches. Warning: a lot of slab and greasy chimney

A peak of 1213m near Matelica.  For the ascent from town, start at the bottom of SP90, under the arches of an old railway bridge to the right of the SP256, and just follow the road to the Prati di San Vicino, and then go on the trail to the cross at the top.  15km with over 1000m ascent.  There is a Strava segment.