Longitude / Latitude 41°51'20"N 112°09'28"W
Belmont Hot Springs (a.k.a Udy Hot Springs) is located 1 mile (1.6 km) southwest of Plymouth in northeastern Box Elder County near the Malad River. The large lake (Main Pond) contains several springs and is the most conspicuous feature of the springs, but a series of smaller ponds given names such as “Indian Pool,” (Indian Spring) Morning Glory Hole,” and “Mud Pots” are present south of the large lake. Belmont is one of the few hot deep SCUBA certification sites in the Western United States.
As of October 1, 2014 Belmont Hot Springs will be closed to diving until a new owner is found for the resort. Better safe than sorry, I would call prior to making the trip.
Update: October 2015, Belmont is closed to diving due to bankruptcy. When a new owner is found diving may or may not be part of their business plan.
Take I-15 north past Tremonton to exit 392. Go east (from I-15) to the first stop sign, take a right, and then go south about one mile. You will see the Camperworld Hot Springs sign; turn right (west) and go about two blocks to the entrance of the resort on your left.
Swimming pool with additional hot tubs, playground and picnic pavilions. All the necessary water, sewer and electrical hookups for RVs. Divers can use the clubhouse changing rooms and showers.
Lake elevation (feet) 4,319
Depth (feet) maximum 30
Length (feet) 370 Width (feet) 140 Shoreline (feet) 952
Visibility: 5-15 Feet
Water Temperature 90-125 °F (closed to diving May-October due to high water temperatures)
Aquatic life: Fingerling trout
While Belmont is limited in depth it is a great place to go to just get wet or to refresh before a trip. Owners are working on building up the banks of Indian Springs to add some additional depth. Currently it's around 18'. Lay on the platform and let the little guppies swim around a nibble on your hands or look for errant golf balls from the 1st and 9th tee box.
Indian Springs is the smaller of the two ponds. The sediment tends to settle quicker at Indian than in the Main pond.
There is a platform in Indian Springs that sits at 18 feet.
The Main pond is larger and tends to be 2-5 degrees cooler than that of Indian Springs. The deepest point is the south end near the large buoy.
Two training platforms have been installed for student to conduct skills assessments. Caution, sitting in about four feet of water are resting areas constructed of chain link fencing. Caution should be used when surfacing near the platforms.
Certified divers not associated or sponsored by a dive facility will be required to show proof of insurance prior to diving. i.e.: Dive Alert Network (DAN), Dive Assure or other providers.
Just remember that the resort is closed to diving May-October due to high water temperatures.