Local

5 unearthed secrets of SLO County's past

Stories by The Tribune journalists, with AI summarization

The curated articles collectively reveal overlooked aspects of San Luis Obispo County's history. Each piece uncovers different historical elements from various periods. The stories involve hidden infrastructures, environmental battles, architectural changes, and forgotten transportation systems.

One article reveals an underground tunnel beneath San Luis Obispo, originally intended to carry San Luis Creek. The structure transformed into an intriguing feature of the city’s underbelly, sparking curiosity among residents and visitors alike. Another article examines the efforts of Harold Miossi, an activist who fought to preserve Cuesta Canyon from a highway project. Miossi’s environmental activism ultimately secured the canyon's natural state, demonstrating the power of community advocacy. Insights into Atascadero High School's architectural changes highlight the impact of state earthquake regulations on local structures. Safety concerns led to the modification and sometimes removal of historical buildings, reflecting evolving safety standards. Finally, a story about the fate of San Luis Obispo’s old streetcars, like "Old No. 1," illustrates the shifts in transportation modes over time. Despite the cars becoming obsolete, efforts to preserve them highlight their historical significance in local transit history.

Harold Miossi fought to prevent a Cuesta Grade road expansion from paving over much of his ranch in the 1960s. He is seen here at a Nov. 4, 1993 interview. By Robert Dyer

NO. 1: HOW SLO ACTIVIST SAVED CUESTA CANYON FROM BEING ‘BURIED ALIVE’ BY HIGHWAY PROJECT. ‘WHY NOT?’

“When I saw the plans, I just sat there in total disbelief,” he later recounted. | Published July 13, 2024 | Read Full Story by David Middlecamp

San Luis Creek flows under the city for a little over two blocks below Higuera Street. Most of the route is unlit darkness. This view is from Sept. 5, 1975. By Jay Martinez

NO. 2: THERE’S A TUNNEL RUNNING BENEATH DOWNTOWN SLO? SEE WHAT LIES IN CITY’S HIDDEN UNDERBELLY

“It’s there for those who had at least a small sense of adventure,” one reporter wrote in 1975. | Published October 12, 2024 | Read Full Story by David Middlecamp

Atascadero High School was originally named Margarita Black Union High School. This view is from the May 6, 1924, Daily Telegram when the school building was new.

NO. 3: HOW STATE EARTHQUAKE REGULATIONS CHANGED THE FACE OF THIS SLO COUNTY HIGH SCHOOL

The school has been around for more than 100 years. | Published February 22, 2025 | Read Full Story by David Middlecamp

The county garage used to be located at 1044 Monterey St. in San Luis Obispo on August 16, 1972. The former auto dealership building was torn down in 1976 after safety issues were raised about the old facility including lack of ventilation and a leaking gasoline tank. By Wayne Nicholls

NO. 4: FROM ’50S CAR DEALERSHIP TO FUME-RIDDEN DEPOT, SEE INSIDE LONG-GONE SLO COUNTY SERVICE GARAGE

Fumes at one point were reportedly so bad at the garage that an employee passed out — forcing some changes in the organization. | Published March 1, 2025 | Read Full Story by David Middlecamp

This scene south on Higuera Street at about Chorro Street distributed by the Morning Tribune in postcard size to its readers on Jan 1, 1890. San Luis Street Railway pulled by horse is at right while carrier makes his way across a mud street. The Tribune, and all other newspapers published here in earlier years, frequently complained about the mud in winter and the dust in summer.

NO. 5: WHAT HAPPENED TO SLO’S OLD STREETCARS? INSIDE THE MANY LIVES OF ‘OLD NO. 1’

When the city’s streetcars were retired from service in 1906, one found its adventuresome life just beginning. | Published May 31, 2025 | Read Full Story by David Middlecamp

The summary above was drafted with the help of AI tools and edited by journalists in our News division. All stories listed were reported, written and edited by McClatchy journalists.