Tule Valley | tule, ''Scirpus'' | Tule River | Tule Lake Unit, World War II Valor in the Pacific National Monument | Tule Lake |
The "Forlorn River" that flows through the area is the Lost River which flows out of Clear Lake Reservoir in California and into Oregon near Klamath Falls, eventually flowing back into California and emptying into Tule Lake.
Prominent were freshwater fish (primarily bonytail, Gila elegans, and razorback sucker, Xyrauchen texanus), freshwater mussels (Anodonta dejecta), water birds (particularly American coot, Fulica americana), and marsh plants (cattail, Typha, tule, Scirpus, and reed, Phragmites).
The southeast border of the San Cristobal drainage is the Tule Desert Drainage, where the Tule Desert (Arizona) has a drainage south into Sonora, Mexico.
One of the few Pomo survivors of the Bloody Island Massacre (also called the Clear Lake Massacre) in Northern California, a 6-year-old girl named Ni'ka, or Lucy Moore, evaded the United States Cavalry by hiding underwater and breathing through a tule reed, and was thereby able to survive.
"Si-Te-Cah" literally means “tule-eaters” in the language of the Paiute Indians.