| Line | Image | Collection | Title |
| 1 | | HCC Maps | Winship's Discovery, 1806 |
| 2 | | HCC Maps | Kapta Kapta [A] |
| 3 | | HCC Maps | Kapta Kapta [B - enlargement] |
| 4 | | HCC Maps | Preliminary Survey of Humboldt Bay, California |
| 5 | | HCC Maps | Preliminary Survey of Humboldt Bay, California |
| 6 | | HCC Maps | Part of Humboldt Bay, California, Section X, No. 1174 |
| 7 | | HCC Maps | Part of Humboldt Bay, California, Section X, No. 1175 |
| 8 | | HCC Maps | Part of Humboldt Bay, California, Section X, No. 1176 |
| 9 | | HCC Maps | Coast North of Humboldt Bay, California, Section X, No. 1177 |
| 10 | | HCC Maps | Humboldt Bay, California |
| 11 | | HCC Maps | State Lands, South Humboldt Bay, Humboldt County, California |
| 12 | | HCC Maps | Humboldt Bay, United States - West Coast, California |
| 13 | | HCC Maps | Humboldt Bay Wetlands Review & Baylands Analysis |
| 14 | | HCC Maps | Humboldt Bay, United States - West Coast, California |
| 15 | | HCC Maps | Wetlands and Deepwater Habitats of the Humboldt Bay and Eel River Delta |
| 16 | | HCC Maps | Humboldt Bay, United States - West Coast, California |
| 17 | | HCC Maps | Humboldt Bay, United States - West Coast, California |
| 18 | | HCC Maps | Humboldt Bay, United States - West Coast, California |
| 19 | | HCC Maps | Humboldt Bay, Humboldt Baykeeper |