| Alimagnet, Field C |
| Alimagnet, Field D |
| Alumni Field, John Adams, Middle School |
| Amery, JV Field |
| Amery High School, Varsity Baseball |
| Amery Little League Fields, Amery Little League Field |
| Andover High School, Andover High School Field |
| Annandale High School, High School Field |
| A P Anderson, Field #1 |
| A P Anderson, Field #4 |
| Apple Ponds Park, Apple Ponds Field |
| Apple Valley H.S., Field #2 |
| Apple Valley H.S., Field #3 |
| Apple Valley H.S., Varsity Field |
| Apple Valley Legion Field, Apple Valley Legion Field |
| Aquila Fields, Field #4 |
| Arbor Meadows, Arbor Meadows Field |
| Arlington Arkwright Baseball Field, Arlington Arkwright Baseball Field |
| Arlington Arkwright Park, . |
| Armatage Park, Field #1 |
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