Licensing A project of Ecotrust
| Data Layers | Type | Description |
| con10 | line | 10-foot contours from Metro |
| demfill | grid | 30-meter DEM filled |
| Slope | grid | % slope |
| con100 | Line | 100 foot contours |
| flowacc | grid | Flow accumulation, integer (40ft) |
| flowdir | grid | Flow Direction (40ft) |
| hlshd | grid | Hillshade |
| slp45pol | Poly | Slopes > 45% |
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