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Portions of these documents were digitized from hardcopy and may contain typographical errors. Hardcopy versions of the Headwaters HCP/SYP are available for viewing at the following locations.

Headwaters Habitat Conservation Plan/Sustained Yield Plan

Volume I: Plan Overview
Part APlan Overview, Glossary, Plan Preparation Team, & Contents of Volumes II-VI (1682k)

Volume II: Watershed and Fish-and-Wildlife Assessments
Part AIntroduction (10k)
Part BPALCO Parcels (46k)
Part CPlan Area Profile (30k)
Part DLandscape Assessment of Geomorphic Sensitivity (29k)
Part EAssessment of Watershed Disturbances and Recovery (26k)
Part FStream Monitoring Report (7,629k)
Part GStream Enhancement Projects (1,575k)
Part HFisheries and Watershed Assessment (276k)
Part ISummary of PALCO’s Eel River Gravel Extraction Operations (41k)
Part JSummary of PALCO’s Commercial Rock Quarry Operations (1,402k)
Part KMulti-Species Monitoring Program (7k)
Section 1     Monitoring Program Update (566k)
Section 2     Multi-Species Monitoring Study (2,991k)
Part LHabitat Guilds (233k)
Part MStructural Components of Wildlife Habitat (33k)
Part NGuidelines for Forest Roads and Landings (88k)
Part 0Assessment and Implementation Techniques for Road-related Sediment Inventories (112k)
Part PSpill Contingency Plan (18k)

Volume III: Sustained Timber Production Assessment
Part AIntroduction (9k)
Part BMethods and Assumptions for Calculating the LTSY Projections (310k)
Part CLTSY Data and Graphs (3,780k)
Part DCalibration of FREIGHTS (33k)
Part EMethods and Assumptions regarding PALCO’s Vegetation Inventory (401k)
Part FIndependent Evaluations of the LTSY Model’s Accuracy (48k)
Part GProvisions for Monitoring Intensive Management Treatments (14k)
Part HRelationship of Individual THPs to the SYP/HCP (40k)

Volume IV: Habitat Conservation Plans
Part AIntroduction (9k)
Part BMarbled Murrelet Conservation Plan (7k)
Section 1     Marbled Murrelet Conservation Plan (1,595k)
Section 2     Bear River Marbled Murrelet Report (Pacific Northwestern Biological) (2,344k)
Section 3     PVA Workshop Minutes, March 4, 1997 (37k)
Section 4     Abundance, Distribution, and Productivity of Marbled Murrelets Along the Northern California Coast in 1997 (Ralph et al.) (1,946k)
Section 5     Ecological Risk Analysis for the Marbled Murrelet: The Sensitivity of Viability to the Parameters of the Zone-4 Metapopulation Model (Akcakaya) (446k)
Section 6     El Nino Southern Oscillations (ENSO) and their Impacts on Marine Populations (Brosnan and Becker) (1,427k)
Section 7     Science Advisory Panel Members and Minutes of Panel Meetings (127k)
Section 8     MMCA Road Maps (1,306k)
Section 9     Methods of Determining Marbled Murrelet Use of the Southern Humboldt Bioregion (Ralph et al.) (430k)
Section 10     Calculating Relative Bird Values for the Proposed Murrelet Conservation Areas in Southern Humboldt County (Ralph et al.) (879k)
Section 11     Logistic Regression Model of Detection Probability for Marbled Murrelets (White) (203k)
Section 12     Marbled Murrelet Conservation Areas: Landscape Analysis and Planning (4,171k)
Section 13     Review of Alternatives (328k)
Section 14     Background Information on HCP for Marbled Murrelet (Reid) (69k)
Section 15     Marbled Murrelet At Sea Survey Data (188k)
Part CNorthern Spotted Owl Conservation Plan (106k)
Part DAquatic Species Conservation Plan (7k)
Section 1     Aquatic Species Conservation Plan (672k)
Section 2     Biological Profile of List A and B Fish Species (300k)
Section 3     Default Strategy for Lands Not Assessed through Watershed Analysis (1,050k)
Section 4     Watershed Analysis --- Federal Framework (34k)
Section 5     Incremental Benefit Analysis of Aquatic HCP Proposals Made by PALCO and NMFS (1,547k)
Section 6     Aquatic Properly Functioning Conditions Matrix (997k)
Part EConservation Plans for Other List A Wildlife Species (381k)
Part FList B Wildlife and Plant Species (132k)
Part GAlternatives Considered (38k)
Part HDiscussion of Changed and Unforeseen Circumstances (63k)

Volume V: Maps and Illustrations
Maps
Map 1     Headwaters Agreement (259k)
Map 2     Plan Area and North Coast Ownership (413k)
Map 3     Hydrologic Units and Planning Watersheds (210k)
Map 4     Lands Adjacent to PALCO’s Existing Ownership (178k)
Map 5     Current Seral Stage (270k)
Map 6     Site Class (288k)
Map 7     Streamside Protection Zones (246k)
Map 8     Roads (230k)
Map 9     Parent Materials (316k)
Map 10     Soil Types (197k)
Map 11     Landslide Hazard Areas (176k)
Map 12     Surface Erosion Hazard Ratings (414k)
Map 13     Landslide Hazard Index (681k)
Map 14     Harvest History (First Harvest Only) (186k)
Map 15     Current Owl Habitat (264k)
Map 16     Fish Distribution (1,372k)
Map 17     Stream Monitoring Stations and CDFG Assessed Streams (223k)
Map 18     Fish Habitat Enhancement Projects (187k)
Map 19     Multi-Species Plot Locations (138k)
Map 20     First Decade Harvest (288k)
Map 21     Seral Stages at 10 Years (301k)
Map 22     Seral Stages at 35 Years (320k)
Map 23     Seral Stages at 65 Years (325k)
Map 24     Seral Stages at 105 Years (341k)
Map 25     Marbled Murrelet Conservation Areas and Related Buffers (119k)
Map 26     Marbled Murrelet Conservation Areas and Related Buffers, with Habitat Detail (127k)
Map 27     Owl Site Locations (201k)
Map 28     Owl Habitat at 35 Years (292k)
Map 29     Owl Habitat at 65 Years (306k)
Map 30     Owl Habitat at 105 Years (306k)
Map 31     Known/Potential Wintering Bald Eagle Foraging Areas (148k)
Map 32     Approximate Location of Grazing Areas (141k)
Map 33     Developed Recreational Sites (148k)
Map 34     Northern Goshawk Survey Areas (155k)
Map 35     Osprey Nest Sites (154k)
Map 36     Aquatic Species Conservation Plan, Alternative Buffer Analysis Based on FEMAT (251k)
Illustrations

Illustration 1     Class I Buffer, Year 0 (138k)
Illustration 2     Class I Buffer, Decades 1-10 (89k)
Illustration 3     Class II Buffer, Year 0 (108k)
Illustration 4     Class II Buffer, Decades 1-10 (77k)

Volume VI: Agreements
Part ALegal Framework of the Plan (28k)
Part B Headwaters Agreement (621k)
Part C Pre-permit Application Agreement in Principle (285k)
Part D Draft Implementation Agreement (274k)
Part E Draft Streambed Alteration (Section 1603) Agreement (49k)