Overview
The Anvil Lake Loop is a short, pleasant 3-mile circuit in the Nicolet portion of the Chequamegon-Nicolet National Forest, near Eagle River in Vilas County. The trail circles a glacial lake with minimal elevation change just 100 feet over the full loop making it one of the more accessible options in a forest known for flat terrain. It is a good introduction to northwoods lake hiking and works well as a standalone outing or as a leg-stretcher for campers staying at the adjacent Anvil Lake Campground.
The lake is set in classic Wisconsin northwoods terrain: paper birch and balsam fir dominate the shoreline, with hardwoods farther from the water. Common loons nest on the lake and are reliably present from late May through August. Osprey are frequently seen hunting the shallows. The shoreline also has good access for bank fishing, and the lake holds walleye, bass, and panfish.
Eagle River is a short drive from the trailhead and serves as a supply town with restaurants, gear shops, and grocery stores. The broader area is popular with families and anglers, and the Anvil Lake Recreation Area is one of the more developed facilities in the Nicolet portion of the forest.
The Route
Miles 0 to 1: From the recreation area parking lot, the loop starts at the south end of the lake and follows the western shoreline north. The trail is wide and well-maintained through this section, with several points where you can step down to the water's edge. A developed beach area is visible near the recreation area.
Miles 1 to 2: The trail rounds the north end of the lake and moves through a section of older white pine and red pine. This is the most forested and quietest section of the loop, away from the campground and beach. A short spur trail leads to a fishing platform on the north shore.
Miles 2 to 3: The eastern shore return follows closer to the campground and recreation area, with views back across the lake. Several picnic tables are positioned along this section. The loop closes back at the parking area.
When to Visit
May through October is the main season. Summer is the busiest time, particularly on weekends and holidays when the campground is full. For a quieter experience, visit on a weekday or in the shoulder seasons of May and September. Fall color around the lake is good in late September.
Check conditions in spring for trail closures due to mud season.
What to Bring
- Water from the trailhead facility covers this short loop. Consider carrying a personal bottle.
- Sunscreen and sun protection, as some lakeshore sections have limited shade
- Insect repellent in June and early July
- A Wisconsin fishing license if planning to fish
- Camera: the lake reflects fall foliage beautifully in September and October
Practical Details
Flush restrooms and potable water are available at the recreation area. Day use fees may apply (as of 2026). The adjacent campground has developed sites with electric hookups, making this a good base for families. See the national forest camping permit guide for general information on campground reservations.
Practice Leave No Trace principles around the lake and pack out trash.
Getting There
From Eagle River, Wisconsin, take US-45 south approximately 5 miles to Anvil Lake Road. Follow signs to the Anvil Lake Recreation Area. GPS coordinates for the trailhead are approximately 45.85°N, 89.05°W. Eagle River is served by US-45 from the south and US-8 from the west.