Here are a a couple maps that show the National Wetland Inventory Wetlands. These maps are for the region of Manila, California. The wetlands have been buffered to 250′, the wetland buffer distance defined by:
HUMBOLDT COUNTY ZONING REGULATIONS Section 313-125
CHAPTER 3, PAGE 194
313-125 WETLAND BUFFER AREAS
There are other boundary definitions to the wetland buffers and my next maps will take those into account (e.g. the 40′ contour).