Sheridan to Lava Hot Springs Road Trip Guide: Epic Scenic Drive

This 450-mile route from Sheridan, WY (elevation 3,750 ft) to Lava Hot Springs, ID (elevation 5,020 ft) traverses the Big Horn Basin, crosses the Continental Divide at the Great Divide Basin (elevation 7,000+ ft), and follows the historic Oregon Trail corridor. Driving time is roughly 7-8 hours without stops, but plan for a full day with sightseeing. The route uses I-90 west to I-25 south near Buffalo, WY, then I-80 west through Rawlins and Rock Springs, WY, before heading north on US-30/US-91 into Idaho. A quirky local fact: just west of Rawlins, the highway crosses the Continental Divide three times within 30 miles due to the peculiar topography of the Great Divide Basin.

Infrastructure Safety & Road Quality

I-80 through Wyoming has excellent pavement with concrete surfaces. However, high winds (gusts over 50 mph) are common near Rawlins; light vehicles should reduce speed. US-91 in Idaho is narrower with soft shoulders; watch for agricultural equipment. Wyoming has a strict anti-texting law; fines up to $75. The Portneuf River Canyon has occasional rockslides; check Idaho 511. Seatbelts are mandatory in both states. Local law enforcement patrols I-80 heavily, particularly for speeding.

• Wind advisories: Download Wyoming Road Conditions app; find shelter in Rawlins or Rock Springs rest areas.
• Cell service: Dead zones between Rawlins and Rock Springs on I-80 (especially around Wamsutter). AT&T and Verizon work in towns.
• Emergency services: Rawlins (exit 215) has a hospital; Rock Springs (exit 99) has urgent care. In Idaho, Soda Springs (US-30) has a small clinic.

Family and Child Suitability

The route is child-friendly with ample national monuments and family-oriented attractions. The Wyoming Frontier Prison Museum in Rawlins (open daily) offers ghost tours and a hangman's scaffold. At Rock Springs, the Bunning Park has a playground and picnic area. Lava Hot Springs is a top family destination with multiple swimming pools, a hot spring, and a river tubing adventure (Portneuf River, open June-August). For toddlers, the Lava Hot Springs Olympic pool has a zero-entry area. The drive is long; plan hourly stops at rest areas with restrooms and open fields.

• Rest stops with playgrounds: Rest area east of Laramie (exit 323) but not on this route; smaller stops at Rawlins (exit 215) have tables only.
• Best kid snack stops: The Farson Mercantile has huge sugar cookies; Rock Springs' Candy World (1433 Dewar Dr) for old-fashioned sweets.
• Entertainment: Download Wyoming audio guides about the Oregon Trail (available via Wyoming State Parks app).

Pet-Friendly Framework

Both states are pet-friendly, but hotels and attractions in Lava Hot Springs may restrict pets to certain rooms. The Red Desert has open BLM land where dogs can roam off-leash with voice control, but watch for rattlesnakes. Pet relief areas exist at rest stops (e.g., Rawlins rest area has fenced dog runs). Lava Hot Springs prohibits dogs in the hot spring pools but allows them on leashes in the Olympic complex grounds. The best pet-friendly hotel is the McFarland House in Lava Hot Springs (allows up to two dogs). In Wyoming, Motel 6 in Rock Springs (exit 99) allows pets at no extra charge.

• Water: Carry fresh water for your pet; I-80 rest stops have faucets but use are seasonal.
• Veterinary: Rock Springs Veterinary Clinic (307-382-4151) and Soda Springs Animal Hospital (208-547-3319) handle emergencies.
• Pet-friendly hikes: The nearby Medicine Bow National Forest (accessible from I-80 at exit 311, then south on WY-230) has dog-friendly trails like the Libby Creek Trail.

Hidden Off-Route Spots

For a 30-minute detour, drive south from Rawlins on WY-789 to the ghost town of Dinosaur, WY (population 1), near the Continental Divide. The town features a massive stone dinosaur statue and the remains of a 1930s resort. Another gem: from Rock Springs, take US-191 south to see the Boar's Tusk (a volcanic plug rising 500 ft from the Red Desert floor). Near Lava Hot Springs, the Chesterfield Reservoir (15 miles north) offers quiet fishing and camping. For a geothermal curiosity, visit the “Steaming Fields” near Soda Springs (off US-30, 5 miles west of town), where natural vents release 140°F steam.

• Directions: Dinosaur, WY: I-80 exit 214, south 15 miles on WY-789. Boar's Tusk: US-191 south 12 miles from Rock Springs, then dirt road 3 miles east.
• Coordinates: Boar's Tusk: 41.4877°N, 109.4394°W. Chesterfield Reservoir: 42.9136°N, 111.8783°W.

Fatigue Management & Rest Zones

The long, straight highways through Wyoming can induce drowsiness. The best strategy is to stop every 2 hours or 130 miles. The Rawlins Rest Area (westbound, mile 215) has picnic tables, vending machines, and clean restrooms. Farther west, the Point of Rocks Rest Area (mile 130) is smaller but has a historical marker about the Overland Trail. In Idaho, the Soda Springs Rest Area (US-30, near Lava Hot Springs) offers a scenic view of the Bear River Valley. For a fatigue-busting activity: at the Continental Divide rest stop (exit 134), walk the short trail to the actual divide – a 10-minute walk that re-energizes the body.

• Notable rest stops: The “Little America” travel center (exit 68 on I-80) is a major truck stop 30 miles east of Rock Springs, with a 24-hour diner and mini-mart.
• Recommended coffee: Rawlins' Starbucks (exit 215, inside Walmart) or Maverik gas station (exit 99, Rock Springs) has 24-hour coffee.
• Power nap spots: Rest areas with benches allow reclining; never sleep on the roadside.

Local Commerce & Culture

Small-town economies revolve around mining, agriculture, and tourism. In Rawlins, the Carbon County Museum (904 E Walnut St) showcases the region's ranching and outlaw history. Rock Springs' historical downtown (on “The Strip” – Dewar Drive) features vintage storefronts and the Reliance Tipple Museum (a former coal mine). Soda Springs, ID, operates a geyser that erupts every hour from a unique carbon dioxide-driven system (the only one in the world). Lava Hot Springs' Main Street has local art galleries selling native pottery and photography. Buy local honey at the Honey Shop in Lava Hot Springs (76 E Main St).

• Annual events: Rawlins' Carbon County Fair in August; Rock Springs International Festival in September (multicultural food and dance); Lava Hot Springs' Fire and Ice Festival in February.
• Best souvenirs: Rawlins' jade (from the nearby Green River Jade fields), Soda Springs' “Bear Lake” raspberry jam, Lava Hot Springs' mineral salts.

Natural Landscapes & Attractions

The route showcases Wyoming's iconic Red Desert and Idaho's Bear River Range. The Great Divide Basin (between Rawlins and Rock Springs) is a 4,000-sq-mi endorheic basin where water never reaches the ocean. Here, you'll see the Continental Divide Sign at exit 134 (milepost 134 on I-80, elevation 7,016 ft). Near Rock Springs, White Mountain (5,000 ft tall) is a dramatic escarpment visible from the highway. In Idaho, the Portneuf River Canyon (US-91) offers stunning limestone cliffs and the Lava Hot Springs geothermal area (year-round 110°F pools).

• Killpecker Sand Dunes (south of Rock Springs via US-191): Largest active sand dunes in North America east of the Mississippi, covering 11,000 acres.
• Beer Mug (Rawlins, WY): A historic bar that claims to have the spot where the outlaw Big Nose George was hanged; the skull is displayed in a nearby museum.
• Lava Hot Springs' Olympic Swimming Complex: World's largest natural warm water springs, with five geothermal pools ranging from 102°F to 112°F.

Culinary Infrastructure

Food options vary from truck stop fare to local diners. In Rawlins, the Fire Rock Grill (exit 215) serves bison burgers and Wyoming craft beer. Rock Springs has the famous Bitter Sweet Bakery (1008 S Main St) for pastries and sandwiches. For a unique stop, try the Farson Mercantile (Farson, WY) on US-191, a general store since 1915 with homemade pies. In Idaho, Soda Springs’ Lollypop Café serves classic American. Lava Hot Springs' Tandoori Oven offers Indian cuisine, a surprising local favorite. Vegetarian and gluten-free options are limited along I-80; pack snacks.

• Rawlins: Penny's Diner, open 24 hours on I-80.
• Rock Springs: Sushi Hana for a break from American food.
• Lava Hot Springs: The Peach Tree Restaurant for breakfast with local huckleberries.

UNESCO World Heritage Sites

While no UNESCO sites lie directly on this route, the region is part of the UNESCO designated Fossil Lake (part of the Green River Formation), accessible via US-191 near Kemmerer, WY. The fossil beds contain Eocene-era fish, insects, and plants, preserved in limestone layers. A detour to Fossil Butte National Monument (45 mins from Rock Springs) offers a visitor center and hiking trails among 50-million-year-old fossils.

Climatic Conditions & Route Aesthetics

Best traveled late May to early September when high desert wildflowers bloom. Summer temperatures range from 70°F to 90°F, but afternoon thunderstorms are frequent. The Red Desert landscape is stark, with sagebrush and occasional pronghorn herds; the beauty lies in its solitude. Autumn (September-October) brings golden aspen on the Bear River Range. Winter (November-April) can bring blizzards and road closures; if traveling then, carry chains. The most scenic section is between Rock Springs and Lava Hot Springs, where the highway follows the Bear River through green farmland and cottonwood groves.

Fuel up in Sheridan, WY (last reliable cheap gas before Buffalo). The stretch from Buffalo to Rawlins on I-25 has limited services; fill up in Buffalo (Shell at exit 299) or Kaycee (only one station). On I-80, gas is available at Rawlins (multiple stations), Wamsutter (limited), and Rock Springs (plentiful). In Idaho, fuel in Soda Springs and Lava Hot Springs is typical resort pricing. Crossing the Continental Divide at 7,000+ ft requires checking tire pressure and engine performance. For EV drivers: fast chargers exist in Sheridan, Rock Springs, and Lava Hot Springs, but not in between. The speed limit is 75 mph on interstates, but strong crosswinds near Rawlins can reduce safe speed. Learn how to find the best stops and hidden gems on this route.

• Fuel stations: Plan to stop every 130 miles; no services between Kaycee and Rawlins except a small gas station in Arminto (unreliable).
• Rest areas: I-80 has rest stops at exit 99 (west of Rawlins) and exit 130 (near Point of Rocks). No 24-hour facilities on US-30 in Idaho.
• Road conditions: Check Wyoming 511 for closures in winter; summer has occasional construction. US-30 in Idaho is mostly two-lane through farming towns.