Lower Geyser Basin: large thermal area including Fountain Paint Pot and Firehole Lake Drive.

Midway Geyser Basin: Grand Prismatic Spring, Excelsior geyser, a 200 foot by 300 foot crater, and Fairy Falls overlook hiking trail.

Upper Geyser: Old Faithful geyser and a square mile with one hundred and fifty geysers including, Geyser Hill group: Aurum geyser, Beehive geyser, Blowout geyser, Cascade geyser, Depression geyser, Dome geyser, Giantess geyser, Infant geyser, Lion Group Geysers, Little Anemone geyser, Marmot Cave geyser, Model geyser, Morning Glory Pool, North Goggles geyser, Plume geyser, Pump geyser, Vault geyser. Also, nearby are: Biscuit Basin, Black Sand Basin. Downstream of the Geyser Hill Group are: Big Club geyser, Bulger geyser, Castle geyser, Churn geyser, Economic geyser, Grand geyser, Grotto geyser, Mastiff geyser, Penta geyser, Oblong geyser, Rift geyser, Spa geyser, Solitary geyser, Spasmodic geyser, Sprinkler geyser, Tardy geyser, Turban geyser, Vent geysr, West Triplet Geyser

Old Faithful Inn: Built during 1903-1904 of local Lodgepole pine with a six story lobby in which is a massive rhyolite stone fireplace.

Shoshone Lake: Largest backcountry lake in the contiguous 48 states, with shore side camping, paddling, and hiking access to Shoshone geyser basin.

Grant Village: southern hub with campground, visitor center, lodge, cafe and gas station.

West Thumb: On Yellowstone Lake, with a small geyser basin and information center.

Bridge Bay: boat launch, boat rental, guided tours,

Lake Village: on Yellowstone Lake, with lodging, cafes and trailheads.

Fishing Bridge: on Yellowstone Lake, with RV park, museum, visitor center, cafe and gas station.

Yellowstone Lake: Largest high elevation lake in North America, with boating, paddling, and campground.

Hayden Valley: Yellowstone′s central valley which once was a lake is now one of the best locations to see coyotes, bison, grizzly bears, moose, osprey and wolves.

Pelican Valley: closed from spring to early July, then open only for day hiking the core or grizzly bear activity. Group hiking is a must for bear safety

Grand Canyon of the Yellowstone: A canyon that is about 24 miles long, between 8,00 and 1,200 feet deep and about a half mile or more wide. Overlooks provide view of the 109 foot Upper Falls, 308 foot Lower Falls. The famous Uncle Tom′s trail on the south rim is a staircase bolted to the side of the canyon and steps down into the canyon chasm.

Canyon Village: a visitor complex with campgrond, lodge, several cafes and gas station.

Artist Paint Pots: a one mile trail along brightly colored mudpots, small geysers and steam vents (fumaroles).

Bechler-Falls River: Access from Idaho, this remote location in the southwest corner of Yellowstone has two rivers with abundant waterfalls, fantastic wildlife habitat and a backcountry hot spring, one called Mr. Bubbles, (44.287418, -110.878889) which I have yet to discover, but is twelve miles by trail from Bechler ranger station.

Blacktail Plateau Drive: On the road between Mammoth and Roosevelt, this one way scenic drive is likely to provide you with wildlife sighting of deer, elk and other animals.

Dunraven Pass: On this 19 mile highway leg between Canyon village and Tower Falls, not far from the 8,859 foot pass can be found a trailhead parking for a 3.1 mile hike up to the summit of Mount Washburn. Closed from October to May.

Lamar Valley: this part of northwest Yellowstone is considered ground zero for grizzly bear and wolf sightings. Also, this valley is home to badger and a large population of bison.

Madison Junction: an amphitheater, information station, campground and access to Firehole canyon road.

Mammoth Hot Springs: Albright visitor center, hotel, campground, historic Fort Yellowstone, massive travertine terraces: lower terrace walking decks, upper terrace drive, and nearby, Boiling River hot springs

Norris Geyser Basin: the oldest and hottest thermal area of Yellowstone, with two walking paths: Porcelain Basin and Black Basin. Steamboat geyser, the worlds tallest at 400 feet.

Roosevelt Lodge: is a visitor complex with lodge, cafes, and campground.

Thorofare Valley: in Yellowstone′s southeast corner, with a prime wildlife habitat with bald eagles, elk, grizlies, moose and wolves.

Tower Fall Junction: is a small complex with campground, general store and access trail to Tower Falls, a beautiful 132 foot waterfall which is accessible by short trail from the general store to the overlook.