Restoration Opportunities at Tributary Confluences:
Critical Habitat Assessment of the Big Chico Cr./Mud Cr./Sacramento River Confluence Area
Prepared for The Natural Conservancy Sacramento River Project, by Eric M. Ginney, Bidwell Environmental Institute CSU Chico, December 2001
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Report Text (195k)

Appendix A - Figures
Figure 1a. (2.2M) Top: 1937 ACOE map of Chico Landing area; Bottom: 1937 photograph of same area.
Figure 1b. (130k) Two views of the Chico Landing area taken in July, 2001.
Figure 2: (241k) Overview of Study Area Location
Figure 3: (233k) Overview of study area. Source: DWR, 2001; CSUC GIC, 2001.
Figure 4. (137k) 1895 edition of the USGS “Chico” 30’ Quadrangle, printed in 1920.
Figure 5. (201k) 1912 Edition of the USGS “Chico Landing” 7.5’ Quadrangle, surveyed in 1904 and 1910;
reprinted in 1931.
Figure 6a: (156k) Map depicting the geologic period in which various surfaces were formed in the study
rea and surrounding lands.
Figure 7: (272k) Flow direction and relative velocity
Figure 8: (2.4M) Historic aerial photograph of study area, courtesy of DWR (2001).
Figure 9: (74k) Map depicting a portion of the 1949 Ord Ferry 7.5’ Quadrangle, photorevised in 1969.
Figure 10: (74k) Adapted from Dr. Paul Maslin’s CSUC website. Arrows along the channel indicate how Big Chico
Creek floodwaters are shunted to Mud Creek.
Figure 11: (1.75M) Map depicting flood recurrence periods for lands in the study area.
Figure 12: (87k) Map depicting preliminary map units for soils surveyed by the NRCS Butte County Soil
Survey.
Figure 13: (94k) Map depicting land capability classification.
Figure 14: (156k) Well established riparian habitat along the banks of Big Chico Creek just upstream of its confluence with the Sacramento River.(photo)
Figure 15: (164k) Photograph looking upstream on Big Chico Creek.
Figure 16: (179k) Photograph taken looking upstream in the channel of Mud Creek.
Figure 17: (171k) Top Photograph--Oblique aerial photograph looking upstream on Mud Creek. Lower Photograph--Looking downstream along the right (west) bank of Mud Creek.
Figure 18: (204k) Upper Photograph--view looking out of swale, in a downstream direction, toward the Peterson Addition.
Lower Photograph--View looking downstream back into swale.
Figure 19a: (460k) Map depicting topographic data for portions of the study area.
Figure 19b: (228k) Oblique aerial photograph showing approximate location of swale
Figure 20: (141k) Dr. Paul Maslin has sampled juvenile salmonids in many locations in and around the study area.
Figure 21. (102k) The Kaiser Slough Unit of the Sacramento River National Wildlife Refuge is located
directly across the river from the Singh parcel and California State Parks’ “Peterson Addition”
and “Washout” natural areas.

Appendix B: (25k) Neighboring Parcel Descriptions
Appendix C: (30k) Soil Descriptions
Appendix D: (21k) Avian Species List
Appendix E: (22k) Historic Maps “On-Line”
Appendix F: (46k) GIS Metadata
Appendix G: (24k) List of Acronyms