CHAPTER XII.

Upper Geyser Basin--The Grand Geyser Region--Firehole River--Madison Lake--Mountains about the Lake--Cascades--The Geysers--Old Faithful--The Bee-hive--The Giantess--Castle Geyser--Grand Geyser--The Saw-mill--The Comet--The Grotto--The Pyramid--The Punch Bowl--Black Sand Geyser--Riverside Geyser--The Fan--The Sentinels--Iron Spring Creek--Soda Geyser 133