Ski Touring Center 25 kilometers of groomed track. Rentals and instruction available. The town of Mammoth has established a great system of marked trails in and around the town area. Almost always someone else has been there ahead of you, so trail has been broken and well defined. None of the trails wander very far from town, so they are better bets for the inexperienced or timid back country user.
None are steep or difficult.
Many of these trails begin at the USFS visitors center, and use the forested areas in that area. These are particularly popular trails when the weather is wailing. The wind and snow isn't as nasty as it can be up in the Lakes basin during a storm. There has been more snowmobile activity in this area in recent years, which can ruin the experience, but this is a classic easy Mammoth ski tour. Relatively flat, well used so you won't be all alone, with a good destination.