| Title | Comment | Keywords |
|---|---|---|
| River Drainage Patterns | 06:58 - 08:02 (01:04) / 2.2 MB | "Douglas D. Rhodes", "rock type", structure, river, "drainage pattern", stream, geologist, "sedimentary rock", "dendritic pattern", fracture, fault, "intersecting pattern", "trellis pattern", erosion, slope, valley |