Sparks Lake is near Mt. Bachelor and the South Sister (the mountain in the photograph) in central Oregon. Taken shortly after sunrise on a just above freezing, perfect August morning. From this view, the Middle and North Sisters are hidden behind the South Sister.
The area around this scene, several hundred yards/meters either direction along the lake shore, is one of my favorite parts of Oregon.
Just follow the signs in Bend to Mt Bachelor (a large ski area) taking you down Century Drive and then the Cascades Lakes Highway. Just after the Mt Bachelor ski resort you will see the signs for the lake. This is the view from the campground area. Well worth the trip!
Location via Google Maps