Overview
The Cottonwood Pond Trail circles a natural Sandhills pond in the quietest part of Samuel R. McKelvie National Forest, in the northeast portion of the forest away from Merritt Reservoir. Natural Sandhills ponds are formed by groundwater, not rainfall, which means they remain filled year-round regardless of summer drought. This particular pond is fringed by mature cottonwood trees and bordered by native grassland, creating an outstanding mix of wetland and grassland habitats.
The 3-mile loop is flat and easy. The birding here is among the best in the forest, particularly during spring and fall shorebird migration when the pond's exposed margins attract numerous species. This trail is the primary reason to visit Cottonwood Campground.
No permit is required. Vault toilet at the campground.
The Route
The full loop (3 miles). The loop begins at the campground trailhead and heads counterclockwise around the pond. The trail stays within 30 to 100 feet of the water throughout, with varying degrees of vegetation between the path and the shoreline.
The north shore is the most heavily vegetated, with cattail and sedge marsh where yellow-headed blackbirds and marsh wrens breed. The east shore is more open with exposed mud that attracts shorebirds in April-May and August-September. The south shore has the densest cottonwood canopy, where great horned owls nest and hunting hawks often perch.
The west shore is the most open, with grassland meeting the water's edge and wide views across the pond to the cottonwoods on the far shore. This is the best photography angle in morning light.
When to Hike
April and May: Peak spring migration. Shorebirds concentrate on exposed mud. Breeding waterfowl are actively displaying. Great egrets begin appearing at the pond in late April.
June and July: Nesting season. Yellow-headed blackbirds are conspicuous and vocal. Fledgling ducks and herons are visible from late June onward.
August and September: Fall shorebird migration peaks, with the highest diversity of species during August after the first adult shorebirds begin moving south.
October and November: Waterfowl migration brings large groups of diving ducks to the pond. The cottonwood leaves turn gold in October.
What to Bring
Many hikers carry 1 liter of water. No water is available at the pond or on the trail. Binoculars are strongly recommended; this trail's appeal is primarily birding and wildlife watching. Insect repellent is useful from May through July.
Trailhead Access
From Merritt Reservoir, take FR-513 northeast about 7 miles to Cottonwood Campground. Gravel road, standard vehicles adequate.
Nearby
The Niobrara Headwaters Trail is in the same part of the forest, about 4 miles south. Together they make a full day of birding and grassland hiking in the eastern McKelvie unit. See the full Samuel R. McKelvie National Forest guide. Follow Leave No Trace principles around the pond, particularly avoiding disturbing nesting birds in spring.