The Bagby Hot Springs are natural hot springs located in the Mount Hood National Forest about 67 miles (108 km) southeast of Portland, Oregon, United States and about 41 miles (66 km) east of Salem, Oregon. The springs are within the Cascade Mountains in a heavily forested area at elevation 2280 ft (695 m).The springs are just outside the boundary of Bull of the Woods Wilderness area.
There are three major springs and several minor outlets that make up Bagby Hot Springs. The largest spring flows 24 gallons (91 liters) per minute at 138 degrees Fahrenheit (59 degrees Celsius). The two secondary springs produce 15 gallons (57 liters) per minute at 136 °F (58 °C) and 3 gallons (11 liters) per minute at 120 °F (49 °C). Water from the Bagby springs is rich with minerals. Chemical analysis of the water shows the following elements are present: silica 80 parts per million, sodium 51 parts per million, sulfate 45 parts per million, carbonate 36 parts per million, chloride 13 parts per million, calcium 3.4 parts per million, hydroxide 1 parts per million, potassium 1 parts per million, fluoride 0.8 parts per million, magnesium 0.1 parts per million, arsenic 0.01 parts per million, lithium 0.026 parts per million, strontium 0.014 parts per million, and nickel 0.004 parts per million.
Bagby Hot Springs are open for 24 hour use. Camping is not permitted at the hot springs or along the trail to Bagby. Also, alcohol is prohibited at the site. Nudity is allowed on the bath decks, but not in the open areas around the bathhouses. Local law enforcement officers periodically visit Bagby to ensure a positive atmosphere at the springs. The waiting time for a soaking tub varies depending upon the number of people visiting the hot springs at any given time. Summer weekends and holidays can be quite busy.
There are three bath houses at the site. The main bathhouse has five cedar log tubs each in a private room. The lower bathhouse has three log tubs and a large round tub located on an open deck. The upper bathhouse is located approximately 100 yards from the other two bathhouses. It has one large round tub on an open deck.
There is no road to Bagby Hot Springs so visitors must hike a 1.5 mile trail from a Forest Service parking area to get to the site. It is a relatively easy hike with only a 200 feet gain in elevation along the way. The trail is maintained by the Forest Service and volunteers from the Northwest Forest Conservancy.It is approximately 40 miles (64 km) from Estacada, Oregon to the Bagby trailhead. To get there from Estacada, take Highway 224 for approximately 26 miles (42 km) to Ripplebrook Guard Station. Then follow Forest Service Road 46 for 4 miles (6.4 km) to the junction with Forest Service Road 63. Turn right and follow Road 63 for 4 miles (6.4 km) to Forest Service Road 70. Turn right onto Road 70 and follow it for 6 miles (9.7 km) to the Bagby Trailhead. A $5 Forest Service permit is required to park at the trailhead. The access roads to the trailhead may be closed after some winter snow storms.