The reservoir was created by the construction of the Newell Creek Dam, completed in 1961.
The lake reaches a maximum depth of approximately 140 feet when at full capacity.
It is a key habitat for the protected California red-legged frog.
The recreation area encompasses 175 acres of water surface surrounded by hundreds of acres of protected watershed land.
All private watercraft must undergo a quarantine or inspection process to prevent the introduction of quagga and zebra mussels.
Loch Lomond Recreation Area is a 175-acre municipal reservoir located in the Santa Cruz Mountains that serves as a primary water source for the city of Santa Cruz. The site is restricted to non-motorized boating and electric-motor vessels to protect water quality. Visitors can access a network of hiking trails that wind through mixed evergreen forests and chaparral. The reservoir is stocked with cold-water and warm-water fish species, including trout and bass. A boat launch facility is provided, and vessel inspections for invasive species are mandatory before launching. Picnic areas equipped with tables and barbecue grills are available for public use. The area remains a designated wildlife sanctuary, with fishing and boating restricted to specific seasonal windows.
The elevated overlook point near the main entrance provides a panoramic view of the dam and the lake surface.
Bring polarized sunglasses to better spot fish and navigate the water surface.
Check the official city website for current water levels and reservoir status before departing.
Pack all trash out, as there are limited disposal facilities in the immediate remote areas.
Do not attempt to launch uninspected kayaks or canoes; they will be denied access to the water.
Closed annually during the winter months, typically reopening in early spring.
No swimming, wading, or bodily contact with the water is permitted to maintain reservoir purity. Stay on marked trails to protect sensitive habitat.