A land page that prices the dig beats one that lists the acreage
Caliche is the swing line in a land buyer's site work budget, and almost no listing page in the valley mentions it.
Caliche is a hard cemented soil layer common across the valley. It makes digging difficult. Excavation for footings, trenching and utility runs turns into equipment dependent work with real cost consequences, and a bid that ignores it is a bid that changes mid project.
A buyer pricing a pad site builds a site work number before anything else. A page that explains how that number gets built, what to request from a geotechnical firm, and where bids commonly move, answers something the national portals have never touched.
Write it as guidance, never as a verdict. Do not assess a specific parcel in marketing copy. Recommend a site evaluation, and say that grading, utility and permitting questions are generally worth confirming with the local building department or your own consultant.
Pages like that get forwarded. A broker sends it to a client, an engineer cites it in an email, and links follow from people who had no reason to link to a listing. Ranking is downstream of being the page people share.