Subject
Geology
35
Copper ores
10
Mines and mineral resources
9
Copper mines and mining
7
Groundwater
6
Geochemical prospecting
5
Land titles Registration and transfer
5
Ore deposits
4
Artificial satellites in agriculture
3
Artificial satellites in remote sensing
3
Evapotranspiration Remote sensing
3
Land use, Rural Remote sensing
3
Subsidences (Earth movements)
3
Arizona
2
Geology, Stratigraphic
2
Geomagnetism
2
Gila River Indian Community of the Gila River Indian Reservation, Arizona
2
Hydrogeology
2
Indian land transfers
2
Land trusts
2
Landslides
2
Soil moisture Remote sensing
2
Soil surveys
2
Soils
2
Table Top Mountain Wilderness (Ariz.)
2
Water-supply
2
Zinc
2
Alkalic igneous rocks Analysis
1
Aluminum ores
1
Alunite
1
Aqueducts Testing
1
Baboquivari Peak Wilderness (Ariz.)
1
Blackfeet Indian Reservation (Mont.)
1
Boring
1
Borings
1
Copper
1
Copper Butte Mine (Ariz.)
1
Copper Metallurgy
1
Cultural property Protection Law and legislation
1
Earth movements
1
Faults (Geology)
1
Geochemistry
1
Geology, Economic
1
Gold
1
Gold mines and mining
1
Gravity anomalies
1
Groundwater Quality
1
Groundwater Sampling
1
Hazardous geographic environments
1
Igneous rocks
1
more ...