Rancho Laguna (Alemany)

With the Secularization act of 1833, the mission pasture and garden lands were sold or granted to Mexican citizens as ranchos over the next thirteen years.

On 16 July 1844, Governor Micheltorena granted to Bishop Francisco García Diego y Moreno the Mission San Luis Obispo a vineyard, garden and a square league of grazing land around the Laguna for the support of worship.

[7] Ownership of 1,051.44 acres (4.2550 km2) (essentially the exact area of land occupied by the original mission buildings, cemeteries, and gardens) was subsequently conveyed to the Church.

[11] : 215 Most of the lands of the Rancho Laguna and all of the Laguna Lake are enclosed within the boundary of the City of San Luis Obispo, some parts of the land in the Irish Hills and to the east and northwest of the lake toward Bishop Peak are outside the city limits.

The reserve also encloses a strip of grasslands to the northeast of the lake to near the crest of the serpentine rock ridgeline.