The Darby Canyon Wind Caves are located near Alta, WY, within the Jedediah Smith Wilderness ("the backside" of the Tetons). This is a very popular trail, so don't expect to have any solitude - you'll constantly be pulling over to let others pass, even horses, and the parking lot is full by 10am on weekends. But don't let that stop you from visiting at least once!
Table Mountain (11,106 ft) is located within the Jedediah-Smith Wilderness of Wyoming, and features amazing views of the lesser-viewed side of the backside of the Tetons. The Grand Teton, South, and Middle Teton are the star of the show here, as they tower over Cascade Canyon.
The Avenues Twin Peaks is another one of my go-to after work hikes. This hike is the most beautiful in Spring during Sunset, when the yellow flowers are blooming, the hills are green, and the temperature is just right; however this trail can be hiked year round. The Avenues Twin Peaks is almost always windy, so a light jacket is recommended. There is no water and no shade, and the trailhead is a popular spot for mountain bikers to depart on their ride.
White Pine Lake in Little Cottonwood Canyon (LCC) sits at 10,200 ft, and is surrounded by several peaks. The trail follows an old mining road, so it is very wide and gradual. Even though you'll hike 5.5 miles one way, you'll only gain about 2,500 ft - not bad by Wasatch standards.
Lambs Canyon is located off I-80 after passing through Parley's Canyon, but before you reach Jeremy Ranch. Lambs Canyon is part of the county Watershed, and therefore, dogs are not allowed. There are multiple signs saying no dogs, and there was even a county sheriff patrolling the area as well, so don't even attempt to bring them up here. It's a bummer to leave dogs at home, but every once in awhile I want to do a hike that Charlie can't.
The Bowman Fork Trail is located in Millcreek Canyon, and is popular for summiting Gobbler's Knob. I usually do this hike after work during the week and don't have time (or sometimes the energy!) to hike to the summit, so my goal is always White Fir Pass. I really like this trail in the summer months because it's really well shaded, cooler, and it follows a stream that the dogs and drink from and play in. In Winter, it's nice snowshoeing because you will hardly see anyone up here.
Sunset Peak via Catherine Pass (10,648 ft) offers a 360 degree view of the Wasatch Mountains, plus a view of Heber City, Park City, and the Salt Lake Valley. Hiking up via Catherine Pass contains a great mix of meadow, wooded areas, a fantastic vistas.
Bald Mountain (11,942 ft) in the High Uintas Wilderness is one of my favorite peaks to summit. Not only is this peak one of the easiest to summit in the area, but it also offers grand views of the Mirror Lake Highway, surrounding lakes, several peaks, and on a clear day you can see Mt. Timpanogos. Along the Bald Mountain trail you may see mountain goats, pika, squirrels, and an abundance of wildflowers in early summer. As with any high altitude terrain, start this hike early in the day to beat the daily afternoon thunderstorms, the afternoon heat, and crowds.