Mosaic grass Madrean evergreen woodland Interstate Railroad Us mex border BLM grazing allotmen Aggregates and crushed stone Building stone Metal Gypsu Cement and Lime Wildfires since 1972 Cities municipal boundary Apache Highlands Eco-regio River subflow 1980 wells 1990 wells 2000 wells 2010 wells 2022 wells Floodzones Native grass dominated < 10% shrub coverage TN C ARIZONA GRASSLAND ASSESSMEN T SAN PEDRO WATER SHED MAP LEGEND LINE S AFFE C T G R OU ND CO VE R WATE R MINE S Native grass dominated 10% 35% shrub coverage Sacation riprarian grassland Exotic grass dominated < 10% shrub coverage g Exotic grass dominated 10% - 35% shrub coverage 0% - 35% Historic grassland > 35% shrub coverage Historic stage coach line
HE IGHLANDS ECO-REGION
Tucson Sierra Vista Tombstone Benson Bisbee Patagonia Mosaic grass Madrean evergreen woodland Interstate Railroad Us mex border River subflow Native grass dominated < 10% shrub coverage TN C ARIZ O NA G RA SS LAND A SS E SS MEN T S AN PEDR O WATER S HED LINE S WATE R Native grass dominated 10% - 35% shrub cover Sacation riprarian grassland Exotic grass dominated < 10% shrub coverage Exotic grass dominated 10% - 35% shrub covera Historic grassland > 35% shrub coverage
Sierra Vista Tombstone Benson Patagonia Cananea Interstate Railroad Us mex border BLM grazing allotment Aggregates and crushed stone Building stone Meta Gypsum Cement and Lime Wildfires since 1972 Cities municipal boundary River subflow 1980 wells 1990 wells 2000 wells 2010 wells 2022 wells LINE S AFFE C T GROUND C OVE R WATE R MINE S
Southern Pacific Railroad 1880
San Pedro and Southwestern Railraod
1880 -1911 1882
New Mexican and American Railorad
Mexican Railroads
butterfield overland mail route stage coach line . 1858 - 1861
NO NATIVE LAND
Ruin
Town/ City - Not Populated
Town/ City - Populated in 2022
Camps established during the Apache Wars (1861-1886) Grant 1860-72, Huachuca 1877
Camp Grant Apache Massacre April 30, 1871.
NOTATED MINES
MINING DISTRICTS OR CLAIMS
