An hour from Medford, tucked into the Sky Lakes Wilderness of Fremont-Winema National Forest, Fourmile Lake offers the kind of alpine clarity Crater Lake gets famous for — minus the crowds. Sitting at 5,748 feet just south of Mt. McLaughlin and near the California border, this 740-acre reservoir draws fly-fishers and hikers who don't mind a rough dirt road and a distinct lack of phone signal.
The fishing is the headline act. Kokanee salmon, brook trout and lake trout all swim here, but the lake has a reputation for big rainbow trout, bolstered by regular stocking from June through August. The high elevation keeps the water cool and productive even in midsummer. Both motorized and non-motorized boats are allowed, with a launch at the Forest Service campground — though anglers warn it's shallow, gravelly and ramp-free, so smaller craft have an easier time of it. No boat? Bank fishing is possible, and Mountain Trout Outfitters runs half- and full-day guided trips.
Hikers get plenty too. Fourmile Lake Trailhead sits beside the campground and connects to a 12-mile route circumnavigating the lake, plus the Badger Lake Trail into the Sky Lakes Wilderness — roughly 9 miles round-trip to Long Lake, with views of snow-capped Mt. McLaughlin along the way. Backpackers can push on to the Pacific Crest Trail. There's also the 6-mile Twin Ponds Trail, which follows an 1860s supply road through meadows and mature forest.
For an overnight base, Fourmile Lake Campground has 29 sites for tents, RVs and equestrians. It's primitive — no electricity, no cell service, pit toilets only — but the lake views justify the sacrifice. If you'd rather have walls and a few comforts, neighbouring Lake of the Woods offers cabins and more amenities.
Practicalities matter here. A $10 per-car day-use fee applies, the access road is dirt and becomes impassable outside summer and early fall, and you'll need your own vehicle — rental cars are available at Rogue Valley International-Medford Airport. Because the lake is technically a reservoir, water levels swing through the year; checking current levels via Lake Brief before you go is a smart move. Google reviewers rate it 4.3 stars, with the clarity earning near-universal praise.
This one's for travellers who like their wilderness genuinely quiet: self-sufficient campers, fly-fishers chasing rainbows, and PCT-adjacent backpackers who'd trade a shower for a sunrise over a glassy alpine lake.