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Legend (Subregions/NaturalFeatures)

Springs (0)
Perennial Streams (2)
Intermittent Streams (3)
All Washes (4)
Under 500 CFS Under 500 CFS
500-1,000 CFS 500-1,000 CFS
1,000-2,000 CFS 1,000-2,000 CFS
1,000-2,000 CFS 1,000-2,000 CFS
2,000-5,000 CFS 2,000-5,000 CFS
5,000-10,000 CFS 5,000-10,000 CFS
Over 10,000 CFS Over 10,000 CFS
Unknown Discharge Unknown Discharge
Cottonwood and Willow (6)
Mesquite (7)
Saltbush (8)
Wildlife Movement Areas - AGFD (2009-2013) (9)
Watershed Boundaries (10)
ADWR Subbasins (11)
Depth to Hardrock Contours (12)
400 foot depth contour 400 foot depth contour
400 foot contour 400 foot contour
800 foot depth contour 800 foot depth contour
1600 foot depth contour 1600 foot depth contour
3200 foot depth contour 3200 foot depth contour
4800 foot depth contour 4800 foot depth contour
6400 foot depth contour 6400 foot depth contour
8000 foot depth contour 8000 foot depth contour
9600 foot depth contour 9600 foot depth contour
11200 foot depth contour 11200 foot depth contour
12800 foot depth contour 12800 foot depth contour
14400 foot depth contour 14400 foot depth contour
17600 foot depth contour 17600 foot depth contour
22400 foot depth contour 22400 foot depth contour
24000 foot depth contour 24000 foot depth contour
25600 foot depth contour 25600 foot depth contour
27200 foot depth contour 27200 foot depth contour
Map boundary Map boundary
unnamed unnamed
Aquifers (13)
Surface Geology (14)
Alluvium and sedimentary rock (Holocene to Middle Miocene) Alluvium and sedimentary rock (Holocene to Middle Miocene)
Andesitic volcanic rocks (Early Miocene and Oligocene) Andesitic volcanic rocks (Early Miocene and Oligocene)
Andesitic volcanic rocks (Jurassic) Andesitic volcanic rocks (Jurassic)
Apache Group (Middle Proterozoic) Apache Group (Middle Proterozoic)
Basaltic volcanic rocks (Middle Miocene to Oligocene) Basaltic volcanic rocks (Middle Miocene to Oligocene)
Bisbee Group and related rocks (Early Late Cretaceous to Late Jurassic) Bisbee Group and related rocks (Early Late Cretaceous to Late Jurassic)
Diabase (Middle Proterozoic) Diabase (Middle Proterozoic)
Granite (Early Proterozoic) Granite (Early Proterozoic)
Granite (Middle Proterozoic) Granite (Middle Proterozoic)
Granitoid rocks (Cretaceous) Granitoid rocks (Cretaceous)
Granitoid rocks (Early Miocene and Oligocene) Granitoid rocks (Early Miocene and Oligocene)
Granitoid rocks (Jurassic) Granitoid rocks (Jurassic)
Granitoid rocks (Paleocene and Late Cretaceous) Granitoid rocks (Paleocene and Late Cretaceous)
Intrusive rocks, undivided (Early Tertiary and Late Cretaceous) Intrusive rocks, undivided (Early Tertiary and Late Cretaceous)
Metamorphic rocks (Jurassic) Metamorphic rocks (Jurassic)
Metamorphic rocks, undivided (Early Proterozoic) Metamorphic rocks, undivided (Early Proterozoic)
Metasedimentary rocks (Early Proterozoic) Metasedimentary rocks (Early Proterozoic)
Metavolcanic rocks (Early Proterozoic) Metavolcanic rocks (Early Proterozoic)
Mylonitic rocks (Early Miocene and Oligocene) Mylonitic rocks (Early Miocene and Oligocene)
Peraluminous, generally muscovite-bearing granite (Eocene to Late Cretaceous) Peraluminous, generally muscovite-bearing granite (Eocene to Late Cretaceous)
Rhyolitic tuff (Early Miocene and Oligocene) Rhyolitic tuff (Early Miocene and Oligocene)
Rhyolitic volcanic rocks (Early Miocene and Oligocene) Rhyolitic volcanic rocks (Early Miocene and Oligocene)
Rhyolitic volcanic rocks (Paleocene and Late Cretaceous) Rhyolitic volcanic rocks (Paleocene and Late Cretaceous)
Sedimentary rocks (Cambrian) Sedimentary rocks (Cambrian)
Sedimentary rocks (Cretaceous) Sedimentary rocks (Cretaceous)
Sedimentary rocks (Jurassic) Sedimentary rocks (Jurassic)
Sedimentary rocks (Middle and Early Miocene) Sedimentary rocks (Middle and Early Miocene)
Sedimentary rocks (Mississippian and Devonian) Sedimentary rocks (Mississippian and Devonian)
Sedimentary rocks (Oligocene and latest Eocene) Sedimentary rocks (Oligocene and latest Eocene)
Sedimentary rocks (Paleocene and Late Cretaceous) Sedimentary rocks (Paleocene and Late Cretaceous)
Sedimentary rocks (Pennsylvanian) Sedimentary rocks (Pennsylvanian)
Sedimentary rocks (Permian and Pennsylvanian) Sedimentary rocks (Permian and Pennsylvanian)
Sedimentary rocks (Permian) Sedimentary rocks (Permian)
Sedimentary rocks, undifferentiated (Cretaceous and Jurassic) Sedimentary rocks, undifferentiated (Cretaceous and Jurassic)
Sedimentary rocks, undifferentiated (Paleozoic) Sedimentary rocks, undifferentiated (Paleozoic)
Sedimentary rocks, undivided (Paleozoic and Middle Proterozoic) Sedimentary rocks, undivided (Paleozoic and Middle Proterozoic)
Sedimentary, volcaniclastic, and volcanic rocks, undivided (Early Miocene and Oligocene) Sedimentary, volcaniclastic, and volcanic rocks, undivided (Early Miocene and Oligocene)
Subvolcanic intrusive rocks (Early Miocene and Oligocene) Subvolcanic intrusive rocks (Early Miocene and Oligocene)
Volcanic and sedimentary rocks, undivided (Jurassic) Volcanic and sedimentary rocks, undivided (Jurassic)
Volcanic rocks (Cretaceous) Volcanic rocks (Cretaceous)
Volcanic rocks (Jurassic) Volcanic rocks (Jurassic)
Volcanic rocks, undivided (Early Miocene and Oligocene) Volcanic rocks, undivided (Early Miocene and Oligocene)
Volcanic rocks, undivided (Paleocene and Late Cretaceous) Volcanic rocks, undivided (Paleocene and Late Cretaceous)
Soil Clay Percentage Across All Horizons (15)
≤10 % ≤10 %
≤20 % ≤20 %
≤30 % ≤30 %
≤40 % ≤40 %
≤50 % ≤50 %
≤60 % ≤60 %
Soils Hydraulic Conductivity (ksat > 2um/s) (16)
≤5 ≤5
≤10 ≤10
≤20 ≤20
≤50 ≤50
≤100 ≤100
≤150 ≤150
≤200 ≤200
≤400 ≤400
Parks and Recreation Areas (17)
COUNTY COUNTY
FEDERAL FEDERAL
MUNICIPAL MUNICIPAL
PRIVATE PRIVATE
SCHOOL SCHOOL
STATE STATE
Protected Lands (18)
Arizona Land and Water Trust Arizona Land and Water Trust
Altar Valley Conservation Alliance (grantee) Altar Valley Conservation Alliance (grantee)
Bureau of Land Managment Bureau of Land Managment
Center for Desert Archaeology Center for Desert Archaeology
City of Tucson City of Tucson
Pima County Pima County
Rincon Institute Rincon Institute
The Nature Conservancy The Nature Conservancy
Town of Marana Town of Marana
Town of Oro Valley Town of Oro Valley
Tucson Audubon Society Tucson Audubon Society
Federal Gov't Federal Gov't
Tree Canopy (2007) (19)
Canopy Canopy
Percent Tree Canopy by Block (2008) (20)
Below Avg Canopy (0-7%) Below Avg Canopy (0-7%)
Above Avg Canopy Below Target (7-20%) Above Avg Canopy Below Target (7-20%)
Above Target Canopy (20%+) Above Target Canopy (20%+)