Mountain Dell Recreation Area is a cross country (xc) skiing area and sledding area in the Winter, and converts to a golf course in Summer. During Winter, Mountain Dell is maintained by TUNA.
Cross country skiing in the Uintas is one of my favorite winter activities! I've been cross country (XC) skiing since 2008 when I lived in Montana. My favorite place to ski was Lone Mountain Ranch, but when we moved to Utah, no resort compared to that. So, I had to find new places to ski, and of course, I wanted to bring Charlie along. Yes, Utah has some small xc ski resorts like White Pine Touring, but you can't bring dogs to those places. Round Valley is a nice dog-friendly option but gets boring after awhile. The past few years I've been dying to get out and xc ski in the Uintas but didn't have a good car to get there in winter. I was afraid my little Sonata would get stuck, and I didn't want to deal with it.
12 Mile (Bishop Creek) Hot Springs is one of Nevada's hidden gems that is oh, so relaxing. Nevada has more hot springs than any other state in the U.S., with more than 300 occurring naturally; most are found in Northern Nevada.
Rob's Trail in Park City, UT is a fun & easy trail that climbs a mere 1,000 ft over 2.5 miles to a beautiful overlook of The Canyons Ski Resort, Park City, and surrounding mountains. The trail works its way through evergreen forest, aspen trees, with great views along the way. This is a very popular trail, and therefore gets packed on weekends. In summer it's a popular trail with mountain bikers connecting from the Mid-Mountain Trail so be careful of bikes flying through in warm months. This trail is dog friendly as well, but the best time to hike here with your furry friend is in early in the morning to avoid the bikers.
The Mill Hollow Backcountry Yurt is located in the High Uintas Wilderness, with a 6 mile hike/ski/snowshoe to reach the yurt. The "trail" follows HWY 35 for 3 miles, before turning off onto forest roads. This ski in requires you to have comfortable backcountry skills, as well as appropriate gear (beacon, shovel, & probe), as avalanches have occurred here. The hike/ski in is well worth it, as you are surrounded by a winter wonderland, yet have a warm hut to hang out in. Plan to spend at least two nights here - one night is not enough to fully enjoy the area, get out for a tour, or relax.
Scout Falls is a popular waterfall located right off the Timpooneke Trail on the way to Mt. Timpanogos. In summer, it's a fun spot to cool off on your hike or filter your water for the long trek to the summit. Normally it is only 1.5 miles to reach the falls but in winter it is 4 miles one way since the road is closed at the winter gate. It's been a goal of mine to see the fall in winter, with long icicles, frozen over.