The Grove of Titans is a redwood grove in Del Norte County, Northern California, with several massive coast redwood (Sequoia sempervirens) trees, some of the largest known redwoods in terms of wood volume. The largest coastal redwood tree in the grove by volume is the single-stem Del Norte Titan. The Lost Monarch is comparably large, but a large sprout from the ground at it's base is not part of the main trunk structure. Del Norte Titan and Lost Monarch became approximately the fourth- and fifth-largest known coast redwoods following new 2014 coast redwood discoveries like Grogan's Fault.
Approximately 2011, someone from Oregon learned the location and broadcast where they found it. A surge of visitors followed, trampling hundreds of native plants. The surge of boot traffic triggered a series of problems like damage to native plants, soil compaction, difficulty for scientists, and strain on limited park resources.
May 2016, M. D. Vaden, Certified Arborist, sent a $1000.00 donation to Redwood National and State Parks, earmarked for helping the Grove of Titans. This first contribution of $1000 was provided in case the parks develop an effective strategy. Park management is considering solutions that will cost over $100,000. Additional donations from others may follow. Contributions to Redwood National and State Parks are handled by California Department of Parks and Recreation.
In 2017, the parks revealed the need for donations far beyond the first $1000, and described a $1,000,000 boardwalk and trail plan for this Grove of Titans. The parks openly went public through an interview and news writer. In 2016, the park posted notices about the damage in Jedediah Smith Redwoods State Park, using before and after photos showing change over a period of several years.
The Grove of Titans (unofficially named) was discovered May 11, 1998, by Stephen Sillett, and naturalist Michael Taylor in Jedediah Smith Redwoods State Park. The discovery implies that Sillett and Taylor are the first to realize and declare the significance of the grove, not that they were the first ones to ever see it.