Bringing Back the Land: Eight Rewilding Projects That GIS Data Shows Are Actually Working

Rewilding is no longer a fringe concept debated at academic conferences. Across the country, federal agencies, state governments, land trusts, and tribal nations are actively restoring degraded landscapes to functional ecological states — and geographic information systems are providing the evidentiary backbone that separates genuine recovery from optimistic press releases.

The power of GIS in this context lies in its capacity for longitudinal comparison. By overlaying historical land cover classifications, derived from aerial photography archives and early satellite imagery, against current high-resolution datasets, analysts can quantify change with a specificity that was simply unavailable to earlier generations of conservationists. The before-and-after story of American land restoration, told in spatial data, is more compelling than most people realize.

What follows is a geographically diverse selection of eight rewilding initiatives whose outcomes are supported by documented spatial analysis. They span ecosystems, funding models, and organizational structures — but each demonstrates that strategic, science-guided restoration produces measurable results.

1. The Kissimmee River Restoration, Florida — Wetlands

Perhaps no rewilding project in the continental United States carries the symbolic weight of the Kissimmee River restoration in central Florida. In the 1960s, the Army Corps of Engineers channelized 98 miles of meandering river into a straight, 56-mile drainage canal. The ecological consequences were severe: floodplain wetlands vanished, wading bird populations collapsed, and water quality in Lake Okeechobee deteriorated.

Beginning in 1999, the South Florida Water Management District and the Army Corps undertook the largest river restoration project in US history, backfilling portions of the canal and reestablishing historic meanders. GIS-based hydrological modeling guided every phase of the work, predicting inundation patterns and floodplain connectivity outcomes before a single cubic yard of fill was moved.

Current land cover analysis using LiDAR-derived elevation data and multispectral satellite imagery confirms that over 40 square miles of wetland habitat have been reestablished. Waterbird surveys, spatially indexed against restored floodplain extent, show wading bird use has increased by more than 300 percent in restored reaches compared to channelized control sections.

2. Tallgrass Prairie Restoration, Flint Hills, Kansas — Grasslands

The Flint Hills of Kansas represent the largest remaining intact tallgrass prairie in North America, and the Nature Conservancy's Tallgrass Prairie National Preserve anchors a broader landscape-scale restoration effort in the region. GIS analysis of land ownership patterns and historical vegetation maps derived from General Land Office survey records has been instrumental in identifying priority parcels for easement acquisition and active restoration.

Spatial modeling of patch connectivity — the degree to which restored prairie fragments are functionally linked across the landscape — has guided planting decisions and prescribed burn schedules. Annual NDVI (Normalized Difference Vegetation Index) analysis from Landsat imagery tracks the recovery of native grass cover on formerly row-cropped fields, providing cost-effective monitoring across hundreds of thousands of acres.

3. Olympic Peninsula Forest Recovery, Washington — Temperate Rainforest

Following the removal of the Elwha and Glines Canyon dams on Washington's Olympic Peninsula between 2011 and 2014 — the largest dam removal project in US history — GIS analysts have documented one of the most rapid landscape transformations ever recorded. Where reservoirs once stood, new land surfaces emerged and began the process of ecological succession.

The National Park Service and University of Washington researchers established a comprehensive spatial monitoring program using repeat drone surveys, ground-based vegetation plots, and satellite imagery time series. Within a decade of dam removal, GIS-based change detection analysis documented the establishment of over 700 acres of riparian vegetation and the return of Chinook salmon to river reaches blocked for nearly a century. The spatial data from Elwha is now used as a reference dataset for dam removal feasibility studies nationwide.

4. Gulf Coast Wetland Restoration, Louisiana — Coastal Marsh

Louisiana loses approximately a football field of coastal wetland every 100 minutes. The Coastal Protection and Restoration Authority of Louisiana, working in partnership with NOAA and the Natural Resources Conservation Service, has deployed GIS-integrated sediment diversion projects designed to reconnect the Mississippi River to its historic delta plain.

The Mid-Barataria Sediment Diversion project, currently under construction, was designed using decades of spatial analysis including subsidence rate mapping, sediment transport modeling, and habitat suitability indices for commercially important species such as oysters and brown shrimp. GIS-based scenario modeling evaluated dozens of diversion configurations before the final design was selected, optimizing land-building potential while minimizing impacts on adjacent fisheries.

5. Longleaf Pine Savanna Restoration, Southeast — Fire-Adapted Forest

Longleaf pine once covered approximately 90 million acres across the southeastern United States. Today, less than three percent of that original extent remains. The America's Longleaf Restoration Initiative, a coalition of federal agencies, state governments, and private landowners, has set a target of restoring eight million acres by 2025.

GIS analysis of soil suitability, existing forest composition, and land ownership has produced a regional priority map that directs restoration investment toward locations with the highest probability of successful reestablishment. Remote sensing-based fire frequency analysis has helped land managers identify areas where prescribed burning programs need to be intensified to maintain the open-canopy conditions on which longleaf ecosystems depend. As of the most recent reporting period, over five million acres are under active management within the initiative's geographic footprint.

6. Sagebrush Steppe Restoration, Idaho and Wyoming — Arid Shrubland

The sagebrush biome of the Intermountain West supports one of the most biodiverse assemblages of any North American dryland ecosystem, yet it has been severely fragmented by energy development, invasive annual grasses — particularly cheatgrass — and altered fire regimes. The Bureau of Land Management's Sagebrush Focal Areas program uses GIS-based core area mapping to identify and prioritize landscapes where intact sagebrush communities remain viable.

Spatial analysis of greater sage-grouse lek locations — the communal display sites used during breeding season — combined with land cover classification and road density mapping has produced a connectivity model that guides both conservation easement targeting and invasive species treatment prioritization. Cheatgrass cover, tracked annually via satellite-derived spectral indices, serves as a key performance metric for restoration interventions.

7. Atlantic White Cedar Swamp Recovery, New Jersey — Forested Wetland

The New Jersey Pinelands, a federally designated National Reserve, harbors one of the most ecologically distinctive landscapes in the eastern United States. Atlantic white cedar swamps within the Pinelands have declined dramatically due to hydrological alteration and deer browse pressure. The Pinelands Preservation Alliance and New Jersey Division of Fish and Wildlife have partnered on a restoration program guided by detailed GIS hydrological modeling.

Watershed-scale analysis of drainage patterns and historic wetland extent, derived from mid-20th century aerial photography, identified sites where modest hydrological interventions — primarily ditch plugging and water control structure installation — could reestablish conditions favorable to cedar regeneration. Spatial monitoring using high-resolution imagery from successive growing seasons documents canopy recruitment and competitive exclusion of invasive species at restoration sites.

8. Northern Great Plains Prairie Pothole Restoration, North Dakota — Wetland Complex

The Prairie Pothole Region of the northern Great Plains is often called North America's "duck factory" for its outsized contribution to continental waterfowl production. Decades of agricultural drainage eliminated millions of wetland basins across the Dakotas, Minnesota, and Iowa. The US Fish and Wildlife Service's Wetland Reserve Easement program, administered through the Farm Bill, has restored hundreds of thousands of acres of pothole wetlands in partnership with private landowners.

GIS analysis of wetland basin density, watershed hydrology, and surrounding upland buffer quality has produced a spatial prioritization model that directs easement acquisition toward landscapes where individual restored basins contribute most to landscape-level wetland connectivity. Annual waterfowl breeding population surveys, georeferenced and analyzed spatially, confirm that restored pothole complexes support breeding duck densities two to four times higher than drained agricultural fields in comparable landscapes.

A Framework for Replication

Across these eight projects, several spatial principles recur consistently. Successful rewilding efforts begin with rigorous historical baseline mapping — understanding what the landscape looked like before degradation is prerequisite to designing credible restoration targets. They employ connectivity analysis to ensure that restored patches are positioned to function within broader ecological networks rather than as isolated fragments. And they establish spatial monitoring protocols from the outset, so that outcomes can be measured, communicated, and used to refine future work.

For communities and land managers considering rewilding initiatives in their own regions, these projects offer not just inspiration but replicable methodology. The data layers, analytical approaches, and monitoring frameworks developed in Kansas, Louisiana, and North Dakota are transferable. The tools exist. The science is established. What rewilding requires now, above all, is the organizational commitment to apply them consistently over the long time horizons that ecological recovery demands.