| Map Name | type | detail (meters) | dist to center (mi) | hcentered(%) | vcentered (%) | "quality" | display map |
| Relief World Map | 0 | 5000 | Click here | ||||
| APRSworld | APRSworld | 4 | 0 | 5 | Click here | ||
| billings.pdb | PocketAPRS | 10 | 26.3 | 84.2 | 25.8 | 852 | Click here |
| mtstate.mp | APRSdos | 121 | 88.7 | 51.6 | 56.7 | 1204 | Click here |
| wyoming.mp | APRSdos | 121 | 118.4 | 38.8 | 87.8 | 999 | Click here |
| ssk.pdb | PocketAPRS | 320 | 440.2 | 41.0 | 91.7 | 1237 | Click here |
| sab2.pdb | PocketAPRS | 320 | 460.3 | 48.3 | 92.2 | 1242 | Click here |
| usancen.mp | APRSdos | 343 | 169.7 | 58.9 | 4.3 | 1854 | Click here |
| usawest.mp | APRSdos | 429 | 427.6 | 91.5 | 58.1 | 1925 | Click here |
| nexrad/rad_blx.geo | NWSRadar | 500 | 25.1 | 40.3 | 18.3 | 1996 | NEXRAD BILLINGS,MT |
| usiroads.pdb | PocketAPRS | 500 | 893.3 | 29.6 | 40.0 | 1996 | Click here |
| usa.pdb | PocketAPRS | 500 | 893.3 | 29.6 | 40.0 | 1996 | Click here |
| usa.mp | APRSdos | 1429 | 606.8 | 42.4 | 20.2 | 2925 | Click here |
| world.mp | APRSdos | 6429 | 5449.2 | 84.9 | 26.3 | 8774 | Click here |
| world.pdb | PocketAPRS | 20480 | 6204.3 | 60.6 | 55.0 | 21636 | Click here |