There are a lot of different areas informally called 'Mammoth Hot Springs': I think if you're tryiny to represent the area above Huntington Lake,in the Sierra Nevada, the valley is much deeper, there's an old tressle style bridge and a little restaraunt in the area. I remember how steep that one is as I took Lenore there once on an old Pan Head with only a rear break, a little daunting, and I also remember the bridge - Two rows of planks about 12" across (a good thing that I have a good sense of balance.) This looks a little like the Hot Creek area by the Airport near Mammoth Lakes on the East Side of the Sierra Nevada, although there too the canyon is a little deeper, Its a river bed cut into yellowish sandstones and some of the pools are so hot now, that there is steam coming out of them and they are so hot they've been fenced off. I wonder if Sherriff's "Officer Opie" still comes down ther to arrest the skinny dippers? BTW: Hot Creek was featured on "California's Gold" once; if you're interested in that and you're lucky you might catch a rerun or check with pbs.org - they might have some reference picts for you. I've never been to the area actually called "Mammoth Hot Springs" but I would assume that there is visable steam there too. Also the sun's position can dramatically change how the water texture looks. you might play around with that some. - TJ