Rolling the River Valley: Miles of Fine Gravel on New Jersey’s Columbia Trail

Columbia Trail

Distance: 15 miles

Trail Map

The Columbia Trail is one of New Jersey’s finest mixed-surface routes, offering about 15 miles of well-groomed gravel running through the rolling hills of Hunterdon and Morris Counties.

Starting in High Bridge, the trail begins with a gentle grade as it follows the former rail corridor north. The surface is mostly compacted crushed stone—smooth enough for 32–40 mm tires but with enough texture to feel like an off-pavement ride. High Bridge is a convenient trailhead, with parking near the old rail depot. Before heading out, or after your ride, you can grab coffee or a sandwich from local spots such as Scout’s Coffee Bar + Mercantile or Circa Restaurant, both just a short pedal from the trail entrance.

The first few miles run through wooded ravines carved by the South Branch of the Raritan River. The scenery feels surprisingly remote for New Jersey, with tall trees closing overhead, the river running beside you and old stone walls tucked into the hillsides. At some points, wooden bridges span the water and offer clear views down the valley. The grade never becomes demanding.

Quiet miles to Long Valley

As you approach Califon, the trail opens briefly into a small-town crossing where you can pause at Califon General Store for snacks or a cold drink. Beyond Califon, the trail rises gently toward Long Valley, passing along farm land, wetlands, and long, quiet tree tunnels. This midsection has few road crossings, consistent surface and long stretches where there is little noise beyond the hum of tires on stone dust.

North of Long Valley, the route enters Morris County, where it continues through forested land toward the Mount Olive terminus. Many riders turn around in Long Valley, where Long Valley Pub & Brewery offers outdoor seating and hearty food.

This rail trail means fine New Jersey cycling

The Columbia Trail is well maintained year-round, with very few rough sections or washouts. Even after rain, the gravel drains well, though low spots may stay damp. Because the route follows an old rail grade, climbing is minimal and the riding is non-technical. Shade covers much of the corridor, which is a relief during New Jersey’s humid summers. Water is not available directly on the trail, so topping up in High Bridge, Califon, or Long Valley is a good idea. Cell service is generally strong throughout.

Heading out in High Bridge: Rail trail cycling in New Jersey. (AI Image)

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