Friends of Bell Lake Yurt
Gallatin National Forest Avalanche Center (no forecast for the T-Roots, but the closest available info)
Grizzly Outfitters--Great backcountry gear, knowledgable staff, and nice rentals.
Sacagawea Hotel--A historic hotel with a delicious restaurant for before or after your trip.
Norris Hotsprings--worth stopping for a soothing soak after your trip.
Pony Bar--worth stopping for a beer after your trip--cash only!