This hike along the Carbon River Road Trail at Mt. Rainier National Park near Ashford Washington is an easy 2.3-mile out-and-back trail that leads to the Old Mine Trail and beyond.
Carbon River rd used to be open to the public beyond this parking area, but from what I understand, it's now a trail due to road damage back in ~2007. The Carbon River rd trail is used to access various trails along this section of Mt. Rainier National Park like the Rain Forest Trail and Old Mine Trail.
In late Winter and early Spring, you'll likely hear and see waterfalls through the trees - though, I could not find any trails that lead to them. The trail is littered with massive ancient trees, but I forgot to take any decent pictures with any reference alongside them. Regardless, they're definitely worth seeing. Also, plenty of deer to be found along this trail.
There's a National Park fee for parking, so make sure to pay before you hit the trail.
Hikers will find a large parking lot near the coordinates provided.