Big Springs detail of underwater grasses is one of the headwaters of the Snake River. Located in Island Park, Idaho, this large springs gushes forth large volumes of crystal clear water. Big Springs is known for two things. First, the large trout that are visible from the bridge. Visitors love to feed the fish. Second, for Johnny Sacks cabin. It’s a River’s Birthplace coming forth from Mother Earth. One hundred and twenty million gallons of pure water a day — enough to meet the water needs of a million people — surge out of the ground here. A short distance from the glassy pool is a bridge. Toss bread crumbs into the water from it, and you’ll see that constant flow (at a year-round temperature of 52 degrees) and the clean gravel bottom make for perfect trout habitat. Big Springs’ trout get BIG. Leave your fishing pole in the car, though: No fishing is allowed until below the outlet to Henry’s Lake, several miles away. The spring supports enormous rainbow trout which are protected from fishing. A .5 mile handicap accessible trail offers wildlife viewing of osprey, bald eagles, waterfowl and the occasional moose, white-tailed deer, and muskrat. Wildlife can be seen year-round although winter access is restricted by snow. Go east on Big Springs road in the Macks Inn area and it will take you right to this site.
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