From Pima County :
| Township General Land Office Survey Maps | Application home page |
| Sonoran Desert Conservation Plan Township Species information is not available because township 28N, Range 21W is outside of Pima County. | Application home page |
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Zoom to approximate Township area on a map. | |
| Section information is not available because township 28N, Range 21W is outside of Pima County. | Application home page |