Iowa trails · Green Valley Lake (Natural)
A 4.2-mile network in Iowa, with 43 ft of climbing. Reaches Green Valley Lake. Managed by the state.
Essentially flat — no sustained climb anywhere along its 5.8 miles.
Green Valley Lake (Natural) access. 41.10050, -94.38988 · directions
On August 31, 2026 — the day this page was generated — first light reaches this trailhead at 6:14 a.m., the sun rises at 6:42 a.m. and sets at 7:52 p.m., and the last usable light fades about 8:20 p.m. (CDT) — 13 h 09 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 4.2-mile route takes roughly 1 h 35 min, so leaving the trailhead at sunrise puts you back around 8:18 a.m. — 11 h 34 min before sunset.