Lake Mary is Located in the Eastern Sierra Nevada mountains roughly 2.5 miles south south-west from the village of mammoth lakes. The campground itself is very large with plenty of Amenities Including 2 small stores / Marinas pokonobè and Lake Mary. Both locations offer simple amenities and treats as well as fishing supplies and bait. Also available at both locations are kayak, paddle board, fishing and pontoon boat rentals by the hour or full day. We payed 15.00 to launch our own boat at the pokonobè marina marina and beached it next to a tree closer to where we were staying. This is very active bear country. We personally had a bear this trip with her two baby cubs rip the fish off the stringer connected to our boat as we unloaded our gear. So be cautious! The campground itself straddles the road with several loops, some offering access to the lake. All campsites included a fire ring, bear box and picnic tables. Restrooms, water and trash receptacles are located in each area throughout the campground. There is a wonderful bike path winds its way through the lodgepole pines up and around lake Mary, all the way up to horseshoe lake or down to the twin lakes basin all with breathtaking views along the path. There’s even a free trolly that runs during the summer that you can ride around the lake basins or all the way into the village or town of mammoth for some extra fun! The fishing at lake Mary is fantastic! Rainbow, brook and brown trout are stocked regularly attracting anglers of all ages. No Swimming is permitted in the lake. There are several hiking trails in the area offering a wide range and variety of terrain and fun for all ages. I would highly recommend this campground to anyone looking to explore the mammoth lakes area and beyond!