| Large oblique photo of Lewiston | Humboldt Times | MF 10 | 9/14/1958 | 7 | | Photo | Lewiston | Photo, Lewiston, Dam |
| Large PG&E ad | Humboldt Times | MF 10 | 9/22/1963 | 7 | | Ad | | Ad, Pg&E |
| Large photo looking of construction of new freeway | Humboldt Times | MF 10 | 8/20/1961 | 15 | | Photo | Smith River Canyon | Photo, Construction, Smith River Canyon |
| Large photo looking upstream of Ruth Dam being built | Humboldt Times | MF 10 | 8/24/1961 | 3 & 5 | | Photo | Ruth Dam (Matthew's) | Photo, Ruth Dam, Construction |
| Large photo of Big 4 in Arcata | Humboldt Times | MF 10 | 9/25/1935 | 7 | | Large Photo | Arcata | Large Photo, Big 4, Celebrating |
| Large Photo of long tunnel that will allow water diverted | Humboldt Times | MF 10 | 8/7/1960 | 5 | | Photo | Trinity River Lewiston Whiskeytown reservoir | Tunnel, Whiskeytown Reservoir |
| Large photo of painting of proposed pulp mills | Humboldt Times | MF 10 | 9/23/1956 | 1 | | Photo | Eureka | Painting, Proposed Pulp Mills, Warren Chase Merritt |
| Large photo of wildlife building | Humboldt Times | MF 10 | 10/15/1957 | 3 | | Photo | Wildlife Building | Wildlife Building, Photo |
| Large promotion ad in favor bond election | The Humboldt Times | MF 10 | 7/28/1916 | 5 | 5 - 7 | Ad | | Promotion Ad, Bond Election, Humboldt Good Roads Club, New Highways |
| Large swells washed over South Spit | Humboldt Times | MF 10 | 10/26/1960 | 3 | | Ocean Conditions | South Spit | Swell, Washed, Cars, South Spit |
| Large swimming pool going to be placed in basement of new building | The Daily Humboldt Times | MF 10 | 1/30/1908 | 3 | 1 | New pool | | Swimming Pool, Placed In Basement, |
| Large timberland purchase by Hammond Lumber Co. | Humboldt Times | MF 10 | 8/31/1923 | 1 | | Land | Humboldt | Land, Timber, Lumber, Purchase, Industry |
| Large water flow in Elk river | Daily Times Telephone | MF 10 | 4/18/1886 | 3 | 2 | High water levels | Elk River | Elk River, High Water Flow, 300 Logs Came Down |
| Large wave in Lituya Bay | Humboldt Times | MF 10 | 7/11/1958 | 1 | | Weather | Lituya Bay Alaska | Lituya Bay, July 9Th 1958, Khantaak Island |
| Large waves have pounded the coast the past sev. days, moving sand which closed the mouth of the Klamath River. for a few days. | Humboldt Times | MF 10 | 10/11/1934 | 10 | 2 | Weather | Klamath | Waves, Flooding, Water Level |
| large waves pounding South jetty | Humboldt Times | MF 10 | 10/7/1962 | 15 | | Photos | South jetty | South Jetty, Humboldt Bay |
| Largest RW burl ever found. | The Humboldt Times | MF 10 | 11/9/1947 | 1-5 | 3-5 | Photo and Article | Big Lagoon | Burl, Redwood, Photo |
| Last 26 mile gap of Roosevelt Highway under construction & should be done in Dec. | Humboldt Times | MF 10 | 5/16/1926 | 3 | 3 | Highway work | Roosevelt Highway Pistol River Brookings | Roosevelt Highway, Construction, Mile Gap |
| Last night 1st time all night circuit was put on | Daily Times Telephone | MF 10 | 3/4/1886 | 3 | 1 | Light system | | Electric Light Company, Mr. Osborne |
| last payment to company for mad river dam | Humboldt Times | MF 10 | 12/13/1955 | | | Payment Approved | Mad river | Payment Approved, Mad River Dam Survey |
| last pile for Trestle across Big Lagoon | Humboldt Times | MF 10 | 6/11/1926 | 2 | | Roads | Big Lagoon | Big Lagoon, Trestle |
| Last trip of the old steamer Antelope | Daily Humboldt Times | MF 10 | 11/18/1909 | 8 | 4 | Steamer operations | Samoa | Steamer, Last Trip, Antelope |
| Late rains brought great number logs down | Daily Times | MF 10 | 5/5/1883 | 3 | 1 | Delayed logs | Ryan Slough | Ryan Slough, Delayed Logs |
| Launching of dredger lighter | Weely Humboldt Times | MF 10 | 5/22/1902 | 3 | 4 | Launching | Big Lagoon | Big Lagoon, Dredger Lighter |
| laying foundation for residence | Humboldt Times | MF 10 | 8/16/1888 | 3 | | land use | | Joseph Simpson, Laying Foundation For Homes, Residence Of Henry Buhne |
| Laying of track through Shively Bluff tunnel to be done today | Humboldt Times | MF 10 | 10/4/1904 | 8 | 2 | Railroad work | Shively Bluff tunnel | Track, Shively Bluff, Tunnel |
| Lazio will begin operating Hum. Bay's first salmon cannery next Wed. or Thurs. | The Humboldt Times | MF 10 | 5/25/1947 | 2 | 2+3 | Industry | Humboldt | Industry, Cannery |
| Leadership of playground is Hazel McCurdy | The Humboldt Times | MF 10 | 6/20/1916 | 1 | 5 | Leadership | | Playground, Hazel Mccurdy |
| Lease of Tidelands | Humboldt Times | MF 10 | 1/12/1956 | 3 | | Land | Humboldt Bay | Lease, Tideland, Proposal, Co, Industry, Oyster, Business |
| Lee Ball & Barney Brogan installed water pipes to George Kunkles cabin | Humboldt Times | MF 10 | 9/7/1929 | 2 | 2 | Pipe work | Big Lagoon | Lee Ball & Barney Brogan, George Kunkle Cabin |
| Lee D. Clark to Fred S. Bair | Humboldt Times | MF 10 | 6/10/1932 | 2 | 5 | Transcript | | Transcript |
| Lee F. Wiley died. | Humboldt Times | MF 10 | 9/26/1917 | 1 | 2 | Death notice | Arcata | Union, Death |
| Legends of Rocks in Humboldt County | Humboldt Times | MF 10 | 10/13/1954 | 13 | | History | | History, Legends, Patricks Point Rocks, Split Rock, Princess Rock |
| Legisl. moving county seat to Eureka, March 15, 1856 | Humboldt Times | MF 10 | 3/15/1953 | 3 | | Lines of the Times | Union Eureka | Lines Of The Times, Legisl, County Seat |
| Legislative act created title of tideland | Humboldt Times | MF 10 | 7/24/1931 | 2 | | Land Use | Arcata | Arcata, 1917, Legislative Act |
| Len Yocum for nomination county supervisors, county pool open | Humboldt Times | MF 10 | 6/1/1930 | 3 | | Nomination County supervisors | humboldt county | Len Yocum, Nomination County Supervision, County Pool |
| Lengthening runway at Rohnerville, plans for Garberville airport | Humboldt Times | MF 10 | 4/6/1949 | 1 | | Airport work | Rohnerville Garberville | Rohnerville Airport, Garberville |
| Lentell finished surveying 29 3/5 miles of so-called southern route | The Humboldt Times | MF 10 | 10/30/1907 | 1 | 1 & 2 | Surveying work | Peanut Red Bluff Weaverville | Lentell, Surveying, Southern Route, Nat Ellery, J.W. Mcclelland |
| Leonard Payfaire retired | Humboldt Times | MF 10 | 8/17/1962 | 27 | 3 | Retired | Eureka | Leonard Payfaire |
| Letter by Dick Denbo | Humboldt Times | MF 10 | 6/1/1952 | 2 | | Letter | Eureka | Dick Denbo, Hr 7343, Trinity River Dam |
| Letter detailing the storm of February 1890. | Daily Humboldt Times | MF 10 | 2/28/1890 | 3 | | Weather | Coquille River Oregon | Mrs.Revoy, Letter, River, Storm, Flood |
| Letter from & by Roben of Blacksburg for bridge | Daily Times Telephone | MF 10 | 2/7/1886 | 2 | 1 | Letter | Eel River Alderpoint | Letter, Roben |
| Letter from G.W. Byard on the Eel River flooding | Daily Humboldt Times | MF 10 | 3/7/1890 | 3 | | Flood | Eel River | Letter, G.W. Byard, Flood |
| Letter from Mad River | Daily Humboldt Times | MF 10 | 5/29/1878 | 3 | 2 | Letter | Mad River Scottsville | Letter, Mr. William Scott |
| Letter from White Alder about floating logs down the Eel | Weekly Times | MF 10 | 12/6/1879 | 3 | 2 | Letter | Eel River | Eel River, Floating Logs Down |
| Letter Quoted and resolution 656 quoted | Humboldt Times | MF 10 | 1/14/1953 | 3 | 2 & 3 | Letter | | Letter And Resolution Quotes |
| Letter sent to B.O.S. for data so State Highway Commission find route | The Humboldt Times | MF 10 | 9/2/1911 | 1 | 6 | Letter | Humboldt County | Letter, State Highway Commission, Feasible Route |
| Letter stating Supers request immediate appropriation from state Highway fund | Humboldt Times | MF 10 | 9/19/1940 | 1 | 2 & 3 | Funding | 299 Mad River | Letter, Request, Appropriation, 299, State Highway Fund |
| Letter to Congress from John Vance | Daily Times | MF 10 | 1/18/1883 | 2 | 2 | Letter | Humboldt bay | Humboldt Bay, John Vance, Channel Depth |
| Letter to Senator Quinn from Congressman Clair Engle | Humboldt Times | MF 10 | 7/30/1950 | 29 | | Letter | | Senator Quinn, Congressman Clair Engle |
