Analysing terrain data
The exposure grade describes the potential consequences of falling or slipping off the path.
Low Exposure: The path is on completely flat land and potential injury is limited to falling over.
Medium Exposure: The trail contains some obstacles such as outcroppings and rock which could cause injury.
High Exposure: Some trail sections have exposed ledges or steep ascents/descents where falling could cause serious injury.
Extreme Exposure: Some trail sections are extremely exposed where falling will almost certainly result in serious injury or death.
Teton Pass is "already on the map as a paradise of easy access for backcountry skiing, but the same goes for downhill biking,” writes Brigid Mander on TetonGravity.com.
The Teton Pass trail network began life as a collection of illegal underground trails, but eventually the builders organized and went legit.
Thanks to "local trail advocates and progressive land managers from the Bridger-Teton National Forest,” the local trail builders were able to construct "the nation’s first (legal) downhill-bike only trail network on public land and minimize user conflict.” "Teton Pass is unique in that there are a lot of multi-use and DH trails crammed into a small space – but the trails are well-signed, so pay attention, respect the community order and be courteous, so that everyone in this highly trafficked spot stays happy,” continues Mander. Jimmy’s Mom is an expert-only downhill trail filled with “large gap jumps, rock gardens and challenging terrain,” according to Mountain Bike the Tetons.
If in doubt, scope the features, and don’t ride anything over your ability level. Candyland, similarly, features big jumps, berms, and features—but some riders rate it as slightly easier than Jimmy’s Mom.
Sources: https://www.tetongravity.com/story/bike/5-of-the-best-downhill-biking-shuttle-zones-in-north-america http://www.tetonmtb.com/trails/jacksonhole/teton-pass/jimmys-mom http://www.tetonmtb.com/trails/jacksonhole/teton-pass/candyland