Rancho de las Pulgas

Rancho de las Pulgas was a 35,240-acre (142.6 km2) 1795 Spanish land grant in present-day San Mateo County, California, to José Darío Argüello.

[4] In 1795, the Spanish Governor of California, Diego de Borica, made the provisional grant of the Las Pulgas to José Darío Argüello.

[14] Alameda de las Pulgas is a modern road almost 10 miles (16 km) long, contiguously connects all the contemporary cities within the original grant, from San Mateo to Menlo Park.

The main village of the Lamchin, the Ohlone tribe living in the San Carlos area before the Spanish settlers arrived, was called, "Cachanigtac."

The name appears to contain a word for vermin[citation needed], which the Spanish missionaries translated as las Pulgas (the Fleas).