| Line | Image | Collection | Title |
| 1 | | HCC Maps | Klamath Southeast Quadrangle, No. 13 |
| 2 | | HCC Maps | Ship Mountain Southwest Quadrangle, No. 14 |
| 3 | | HCC Maps | [Watersheds of the Californian Pacific North West] |
| 4 | | HCC Maps | [Timber Stand Classification from 1960 Photogrammetry] |
| 5 | | HCC Maps | Catalog of Information on Water Data |
| 6 | | HCC Maps | [Logging Map of Freshwater Creek Drainage] |
| 7 | | HCC Maps | Redwood Creek Watershed, Subdrainages |
| 8 | | HCC Maps | Land Use and Land Cove, 1978, Eureka, California-Oregon. Open File 79-11174-1 |
| 9 | | HCC Maps | Rivers and Streams of Northcoastal California |
| 10 | | HCC Maps | Indicator Species of the Vegetation Types and Plant Communities of Coastal Northwestern California |
| 11 | | HCC Maps | Pacific Coast Ecological Inventory, Eureka, California |
| 12 | | HCC Maps | National Estuarine Atlas, Eel River, CA [No. 4.06] |
| 13 | | HCC Maps | National Estuarine Atlas, Humboldt Bay, CA [No. 4.07] |
| 14 | | HCC Maps | National Estuarine Atlas, Klamath River, CA, OR [No. 4.08] |
| 15 | | HCC Maps | North Coast Rivers and Streams Map [New River update] |
| 16 | | HCC Maps | Eastern Pacific Shores |
| 17 | | HCC Maps | [National Wetlands Inventory], Cape Mendocino, California |
| 18 | | HCC Maps | National Wetlands Inventory, Crescent City, California |
| 19 | | HCC Maps | National Wetlands Inventory, Eureka, California |
| 20 | | HCC Maps | National Wetlands Inventory, Orick, California |
| 21 | | HCC Maps | National Wetlands Inventory, Arcata North, California |
| 22 | | HCC Maps | National Wetlands Inventory, Arcata South, California |
| 23 | | HCC Maps | National Wetlands Inventory, Cannibal Island, California |
| 24 | | HCC Maps | National Wetlands Inventory, Childs Hill, California |
| 25 | | HCC Maps | National Wetlands Inventory, Crescent City, California |
| 26 | | HCC Maps | National Wetlands Inventory, Eureka, California |
| 27 | | HCC Maps | National Wetlands Inventory, Fern Canyon, California |
| 28 | | HCC Maps | National Wetlands Inventory, Ferndale, California |
| 29 | | HCC Maps | National Wetlands Inventory, Fields Landing, California |
| 30 | | HCC Maps | National Wetlands Inventory, Fortuna, California |
| 31 | | HCC Maps | National Wetlands Inventory, High Divide, California-Oregon |
| 32 | | HCC Maps | National Wetlands Inventory, Hiouchi, California |
| 33 | | HCC Maps | National Wetlands Inventory, Orick, California |
| 34 | | HCC Maps | National Wetlands Inventory, Requa, California |
| 35 | | HCC Maps | National Wetlands Inventory, Rodgers Peak, California |
| 36 | | HCC Maps | National Wetlands Inventory, Sister Rocks, California |
| 37 | | HCC Maps | National Wetlands Inventory, Smith River, California-Oregon |
| 38 | | HCC Maps | National Wetlands Inventory, Trinidad, California |
| 39 | | HCC Maps | National Wetlands Inventory, Tyee City, California |
| 40 | | HCC Maps | National Wetlands Inventory, Wetlands and Deepwater Habitats of the Humboldt Bay and Eel River Delta |