Renewable Energy Siting on BLM Federal Land: PLSS Legal Descriptions, Sage-Grouse Habitat, and the Energy Pack

A utility-scale solar or wind project on BLM-managed land can turn on two facts you cannot read from a satellite image: whether the ground sits inside greater sage-grouse habitat, and whether the minerals underneath it are federally owned. Both are decided at the level of a PLSS legal description, and both can stall a project after a developer has already spent months and survey fees on it. Getting the PLSS legal description right is the first step in BLM renewable energy siting, but it is not the last. That same description is the entry point into the federal data telling you whether a site is worth pursuing at all.

This post walks through the two screens that catch renewable projects late (sage-grouse habitat and federal split estate), why both start from a legal land description, and how Township America's Energy pack surfaces them on a single PLSS lookup.

Why a BLM right-of-way application starts with a PLSS legal description

Solar and wind projects on federal land are authorized as rights-of-way, and the application is Standard Form 299 (SF-299). The completeness review, the first hurdle before environmental review begins, checks that every parcel in the project footprint carries a full Public Land Survey System description: state, principal meridian, township, range, section, and aliquot part where the footprint covers only part of a section.

Precision here is not a formality. A transposed range direction (writing R65W instead of R65E) or an omitted meridian moves the described parcel to the wrong place, and BLM returns the application for correction. Township America resolves PLSS legal descriptions to coordinates across all 30 PLSS states and 37 principal meridians, down to the 1/256 aliquot part (about 10 acres), calculated from official BLM survey data rather than grid arithmetic. That distinction matters near the north and west edges of a township, where survey correction factors produce irregular sections and government lots that aliquot notation cannot describe. The principal meridians reference covers which meridian governs each western state, including the two-meridian states like Montana where township numbering overlaps.

The description places the project. The next question is what sits on top of and underneath that placement.

Screen for sage-grouse habitat before you commission a biologist

Greater sage-grouse habitat is one of the most consequential constraints in the western siting map, and it overlaps heavily with the open, wind-swept, high-desert ground that renewable developers want. BLM manages this habitat through resource management plans that designate priority and general habitat management areas across the bird's range in states like Wyoming, Colorado, Nevada, and Oregon. A project that falls inside priority habitat generally faces stronger avoidance expectations, seasonal timing limits near breeding grounds (leks), and caps on surface disturbance. The specific stipulations vary by state plan, so the practical value is knowing early whether you are in that conversation at all.

The expensive way to find out is to commission a biological survey and learn, weeks later, that the parcel sits in core habitat. The Energy pack takes a different order of operations. Its sage-grouse habitat and renewable siting layers load on the same PLSS lookup that places the project, so a siting analyst can check a candidate tract, for example T33N R105W Sec 14, Sixth Principal Meridian in Sublette County, Wyoming, and see the habitat overlap before anyone drives to the field. That does not replace the biological survey. It tells you which parcels are worth surveying and which to drop from the shortlist before they cost you anything.

If a candidate parcel clears the habitat screen, the Wyoming PLSS converter and the state pages carry the underlying descriptions into the rest of the workflow.

Split estate: when the minerals under your solar site are federal

The second late-stage surprise is subsurface. Across the West, surface ownership and mineral ownership are frequently severed, a condition called split estate. Under long-standing US property law the mineral estate is generally dominant, which means a federal mineral owner or its lessee retains the right of reasonable access to develop the minerals, even under a surface project someone else controls. For a solar array or a wind layout, a future federal oil and gas lease under the footprint is a real conflict, not a hypothetical one.

The Energy pack maps federal subsurface minerals for split estate where mapped, alongside BLM oil and gas leases and ONRR federal royalty totals. Run a proposed footprint and you can see whether the minerals below are federally held and whether an active BLM lease already covers them. The pack adds the surrounding energy picture on the same grid: producing-state wells across Colorado, North Dakota, Oklahoma, Wyoming, and New Mexico plus federal wells, split-estate detection and offset-operator analysis, nearest HIFLD pipelines, a USGS orphaned-wells liability screen, and FracFocus disclosures. For a renewable developer, that context answers a blunt question early: is this parcel already an active energy tract, or is it clear?

From legal description to an early diligence checklist

Put together, the workflow runs in one direction and stays on one coordinate system:

1. Enter each candidate parcel as a PLSS legal description (or reverse-lookup from a coordinate).
2. Read the sage-grouse habitat and renewable siting overlay to flag parcels inside priority habitat.
3. Check federal subsurface minerals and BLM leases for split-estate conflicts.
4. Drop the parcels that fail either screen, and carry the survivors forward with clean descriptions for the SF-299 footprint.

Because every layer keys off the same legal description, there is no reconciling one dataset queried by API number against another queried by lease against a third queried by section. The tract goes in once and the federal data lines up against it.

What goes into the application package

Once a footprint survives the screens, the diligence needs to travel with it. The Energy pack rolls its layers up into a Federal Energy Report PDF, a single document that records the wells, leases, federal minerals, pipelines, and habitat context for the parcels in question. If a project also needs the broader environmental pre-screen (flood, wetlands, soils, wildfire, surface management), the separate Federal Land pack ($80 per month) adds those layers, and stacked packs roll into one Combined Parcel Report PDF. Note that a pre-screen is an early diligence read, not a substitute for a formal ASTM E1527-21 Phase 1 environmental site assessment or a biological survey.

For teams that would rather validate a full project list programmatically, the API returns coordinates and full GeoJSON section and quarter-section polygons for every valid description, so a siting engineer can push the surviving footprint straight into the environmental review layer stack. For a deeper look at how PLSS accuracy shapes solar and wind siting, see BLM solar and wind leases and PLSS coordinates.

Plan and pack requirements

PLSS resolution and the Texas grid are free on every tier. The federal energy data described here lives in the Energy pack at $150 per month, which attaches to a Pro ($20 per month) or Business ($40 per month) plan. So the working ticket is a base plan plus the Energy pack stacked on top. Batch conversion and structured exports (CSV, KML, Shapefile, GeoJSON, DXF) sit on the Business plan for multi-parcel portfolios. Current tiers and pack pricing are on the pricing page.

The point is order of operations. Sage-grouse habitat and federal split estate are the two screens most likely to sink a renewable project after the money is spent, and both are answerable from the same PLSS legal description you already need for the SF-299. Running them first, on one lookup, is the cheapest diligence you will do all cycle.

Try the PLSS converter → or see plan and pack pricing →