Bridger-Teton National Forest
The Bridger-Teton National Forest is part of the Greater Yellowstone Ecosystem. It has played an important part in the recovery of species such as the wolf, grizzly bear, and white bark pine. The Intermountain Trails, November issue highlighted the Bridger-Teton National Forest. Enjoy the newsletter to learn more about the great work that is being done on this forest.
Situated at the base of limestone cliffs, Periodic Spring discharges about 285 gallons per second. Spring water gushes from an opening for several minutes, stops abruptly, then begins a new cycle a short time later. Intermittent water flows range anywhere from four to 25 minutes and the water is clear and cold. This is a very rare type of spring with only a few known in the world. Unlike thermal geysers, where water is heated and pressurized, the spring has disputed theories as to its perplexing behavior. One theory suggests siphoning action. Water fills a subsurface reservoir and flows freely from the opening until the water level drops below the siphon intake. The reservoir then refills and the process starts all over (Corliss, 1990; Mohlenbrock, 1990).
From Highway 89 in Afton, Wyoming head west on Forest Service Road 10211. This gravel road winds through the canyon for about four miles. The Periodic Spring Trail follows the creek side for a little over 1/2 mile to the Periodic Spring. Take a break and enjoy lunch at the Periodic Spring Picnic Site.
Snake River Canyon
The Upper Snake River is known for its crystal clear waters, unique geology, numerous recreation adventures, and amazing varieties of wildlife. This portion of the Snake River is fee-free due to generous donations made through the Snake River Fund.
Each summer from the June to August, the portion of the Snake River between South Park Bridge and Sheep Gulch hosts over 200,000 visitors. This is an extremely crowded and sought after section of the Snake River. In an effort to alleviate some of the crowding, special use permits for non-commercial groups over 15 people and for institutional outfitters are required. There are several river access points and campgrounds along the river. If launching a boat, you are required to use the existing boat ramp facilities at the access points.
The Snake River Canyon is located south of Jackson and runs along Highway 89 to Alpine, Wyoming. At Hoback Junction turn right at the fork in the road and travel across the bridge over the Snake River and onward. Visit the Snake River Canyon page on the Bridger-Teton National Forest web site to learn more about seasonal and safety information.