ORWW Rivers: 2010 South Umpqua Headwaters Precontact Reference Conditions Study: Subbasins


Study Area Vicinity Map	ca. 1800 Vegetation	2010 Subbasin Index	GLO Bearing Trees

The Castle Rock Fork subbasin is 27,212 acres in size and includes Skimmerhorn Creek, Fish Lake Creek, Highrock Creek, Horse Creek, and Hummingbird Creek as principal tributaries. It is the easternmost subbasin in the South Umpqua Headwaters Reference Conditions Study and contains portions of four Townships; three Fire Lookouts along its perimeter; two of the study's 25 designated "Area of Special Interest" and a portion of a third.

TOWNSHIPS, MAPS, PHOTOGRAPHS & ORIGINAL LAND SURVEYS


Tsp. 28 S., Rng. 2 E.	Tsp. 28 S., Rng. 3 E.	Tsp. 29 S., Rng. 2 E.	Tsp. 29 S., Rng. 3 E.

FIRE LOOKOUTS & OSBORNE PHOTOGRAPHS

LOOKOUT	START	STOP	TSP	RNG	SEC	ELEV.
Grasshopper Mountain	1915	1977	29 S.	3 E.	18	5,552
Little Black Rock	1933	1966	28 S.	2 E.	24	4,538
Rattlesnake Mountain	1932	1962	28 S.	3 E.	26	6,656

"AREAS OF SPECIAL INTEREST"

Icon	Name	TSP	RNG	SEC	Acres
	Fish Lake	29 S.	3 E.	05-06	285
	Grasshopper Complex	29 S.	3 E.	07, 18	458
	High Prairie	28 S.	3 E.	23	251