Northern California (USA) U.S. Forest Service Late-Successional Reserves (LSRs)

This coverage contains polygon features representing Late-Successional Reserves (LSR) and Managed Late Successional Areas (MLSA) of each of the Region 5 northwest forests (Klamath, Six Rivers, Shasta-Trinity, Mendocino, Lassen) within the Northwest Forest Plan (NWFP). The objective of LSRs is to protect and enhance conditions of late-successional and old-growth forest ecosystems, which serve as habitat for late-successional and old-growth related species including the northern spotted owl. MLSAs are similar to LSRs but are identified for certain owl activity centers where regular and frequent fire is a natural part of the ecosystem and limited timber management practices are permitted. These LSRs and MLRAs include only the first two elements of the NWFP LSR system: (1) areas mapped as part of an interacting reserve system; and (2) LS/OG 1 and 2 areas within Marbled Murrelet Zone 1, and certain owl additions mapped by the Scientific Panel on Late-Successional Forest Ecosystems (1991). They do not include Element 3, occupied marbled murrelet sites or Element 4, known spotted owl activity centers.