Cleone, CA Coastal Erosion Rate
What USGS measures 2.6 miles north of Cleone, CA
Nothing alarming measured 2.6 miles north of Cleone, CA: whatever shift USGS's transects picked up here is too small to call reliably one way or the other, which this site reports as "no significant trend" rather than forcing a direction.
What "Cleone" means on this page
Cleone, CA is the nearest named place, 2.6 miles away, to a ~3.5-mile stretch of coast USGS has surveyed - the reading below covers that whole stretch, not a single property in it. Segment center: 39.53, -123.78. USGS's California assessment last surveyed this stretch through 1852-2016, computing the rate with its LRR method. Other US regions were surveyed in different years, sometimes decades apart, so this page states its own rather than implying one national vintage.
How solid is this number
This reading comes from 11 individual transects averaged together, 0% of which measured erosion rather than growth. The published margin on this reading runs ±0.26 ft/yr. The unadjusted figure here, 0.11 ft/yr, would place it 862 of 1211 if ranked directly - but an unreliable rank isn't a useful one, which is exactly why "no significant trend" is the headline instead. Source: USGS National Shoreline Change data release (ScienceBase, DOI 10.5066/P94J0K7Z), Kratzmann 2024 / Data Report 1187. For scale: Chatham, MA, 2781 miles away, ranks 1203 of 1211 nationally for growth, 5.4 ft/yr. 1.5 miles up the coast, Cleone, CA shows 0.4 ft/yr of accreting.
Cleone, CA on the source map: try the Coastal Change Hazards Portal, zoomable well past this page's ~3.5-mile grain.