The CLN is a regional conservation strategy for the San Francisco Bay Area, with a set of goals and science-based decisionmaking tools that support strategic investments in land protection and stewardship. These tools focus conservation in areas that represent the region’s biodiversity and support ecological function across the nearly 5 million acres that comprise the 10 Bay Area counties.
Scroll down to review all of the goals’ summary data for your selected geography or click on the goal in these cards to jump to that content.
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Goal 1:
The CLN sets an ambitious goal to conserve half of the land in our region.
The CLN prioritizes the conservation of lands that hold and link together the rare landscapes of the region. The network sets progressively lower conservation goals for less rare habitats.
Water is essential to life. The CLN aims to conserve the most important streams across the region, as well as ponds and stream valleys that retain natural land cover.
The CLN also aims to conserve the sources of our streams and waterways, which are healthy only when the underlying groundwater tables and headwaters are also healthy.
CLN sets an ambitious goal to conserve half of the land in our region.
Bar chart conservation goal years legend:
20192024
00% achieved (+0.0% since 2019)
00% remaining
All Counties
Goal 2
The CLN prioritizes the conservation of lands that hold and link together the rare landscapes of the region. The network sets progressively lower conservation goals for less rare habitats.
Bar chart conservation goal years legend:
20192024
Conserve and steward core habitats and the lands that connect them.
CLN 2.0 defines 37 landscape units, subregions of the Bay Area based on physiographic features such as mountain ranges and valley bottoms. To incorporate ecological variability, the CLN sets goals for each vegetation type within each landscape unit where it occurs.
Metric 3.1
Conserve large, contiguous habitat blocks.
Click on a landscape unit in this map to see total acres of large habitat blocks and percent protected.
Landscape unit
0%
100% Protected
Metric 3.2
Conserve linkage areas.
Click on a landscape unit in this map to see total acres of linkage areas and percent protected.
Landscape unit
0%
100% Protected
Goal 4
Water is essential to life. The CLN aims to conserve the most important streams across the region, as well as ponds and stream valleys that retain natural land cover.
The CLN also aims to conserve the sources of our streams and waterways, which are healthy only when the underlying groundwater tables and headwaters are also healthy.
Metric 5.1
Conserve groundwater recharge zones within the planning watersheds of fish-bearing streams.
Achieved
Delta
Remaining
Metric 5.2
Conserve headwater source areas.
Achieved
Delta
Remaining
While all natural areas are valuable, the concept of an “irreplaceable landscape” in the CLN framework specifically refers to the connected network of lands that derive from the computer modeling and are critical for meeting the goals set for coarse-filter and fine-filter conservation targets. To learn more, see the CLN 2.0 Progress Report.
Globally unique or highest priority locally rare vegetation types. Examples: Old-growth Redwood, Serpentine Grasslands, Valley Oak Forest / Woodland, Redwood Forest east of Napa Valley. To learn more, see the CLN 2.0 Report.
Locally rare vegetation types comprising 5% or less of a landscape unit. Examples: Blue Oak / Foothill Pine Woodland in the Mt. Hamilton Landscape Unit, Douglas-Fir Forest in the Russian River Valley Landscape Unit, Montane Hardwoods in the Blue Ridge Berryessa Landscape Unit. To learn more, see the CLN 2.0 Report.
Locally and globally common vegetation types, also referred to as matrix species, comprising more than 5% of a landscape unit. Examples: Blue Oak Forest / Woodland in the Mt. Hamilton Landscape Unit, Hot Grasslands in Blue Ridge-Berryessa Landscape Unit. To learn more, see the CLN 2.0 Report.
Presence of coho salmon and inland steelhead (including adfluvial rainbow trout). To learn more, see the CLN 2.0 Report.
Presence of inland native fish and coastal steelhead streams. To learn more, see the CLN 2.0 Report.
2019
2024