Part of Mammoth Mountain Bike Park. If riding during park hours, you need a pass.
Juniper starts off of Paper Route near the southern end of the bike park. You can also merge into it from Timber Ridge or Lakes Trail. No matter where you start, it's a super fun trail with quick turns, lots of speed, and a great flow. Nothing too technical, but the occasional rock garden and root-littered switchback will keep you on your a-game.
As you near the bottom at Eagle Lodge, a few high-speed paver turns deliver you into an aspen grove with a nifty bridge section before dropping you out at the lodge. From here, it's easy to ride to town or head back to the Village to catch the bike shuttle up to Main Lodge.