Sand and gravel country: half the map, 30% of the tonnes

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A buyers’ newsletter we drew colours each state by the construction aggregate it produces more of, and sand-and-gravel tan covers 52% of the map. The 20 tan states hold 59% of America’s land but produced 30% of its 2023 aggregate tonnes; crushed stone was 62% of the national total. The map counted acres, not tonnes.

U.S. Geological Survey, National Minerals Information Center, “USGS Aggregates Time Series Data by State, Type, and End Use” (1971–2023): crushed stone and construction sand and gravel sold or used by producers, 2023 state totals (USGS withholds crushed stone for Delaware, Louisiana and Nebraska) and national totals of 1,550 million and 967 million metric tons. State land areas from the U.S. Census Bureau, State Area Measurements (2010). Shares of land and of map ink are our arithmetic. The newsletter and both drawings are ours; every tonnage is the USGS’s., 2023Added October 25, 2026

01The claim

Most of America’s construction aggregate comes out of sand and gravel pits rather than crushed-stone quarries, so buyers should expect pit material to set the price almost everywhere.

02The trick

Every state’s colour is right: in 2023 sand and gravel outproduced crushed stone in exactly the 20 states painted tan. The trouble is what decides how much tan you see. A filled map hands each state ink in proportion to its land, and the tan states include most of the big, thinly settled ones: Montana, Wyoming, Nevada, New Mexico, the Dakotas, Alaska. All 20 together hold 59% of the country’s land and take 52% of this map (Alaska is a shrunken inset), so the eye reads “most of the map” as “most of the aggregate”. But acreage is not output. Those 20 states produced 747 million tonnes of the national 2,520 million, 30%, while the 27 slate states produced 69%. Wyoming has 13 times New Jersey’s land and gets about 12½ times its ink, yet produced 22.5 million tonnes to New Jersey’s 33.1 million. The categorical fill also throws away the margin: Wisconsin, where sand and gravel won 28.9 to 27.6, wears the same full tan as Montana, where it won 14.6 to 2.9, and even inside the tan states 30% of the tonnes were crushed stone. (Gradation and its advice are our invention, drawn to show the mechanism; every tonnage is the USGS’s.)

03The fix

The redraw takes the tonnes off the map and puts them on a length: one bar per state, sorted by total, split into crushed stone and sand and gravel, with a dot marking the 20 states the map painted tan. The ranking tells the opposite story. Crushed stone was 1,550 million of the 2,520 million tonnes, 62%. Texas alone, 306 million tonnes and two-thirds crushed stone, made twice as much as Montana, Wyoming, Idaho, Nevada, the Dakotas and New Mexico together on 37% of their land. The tan states are scattered down the list, mostly in the lower half, and California is the only one in the top five. A three-bar panel puts the gap in one place: the tan states hold 59% of the land, got 52% of the ink and made 30% of the tonnes. Two cautions. USGS withholds crushed stone for Delaware, Louisiana and Nebraska, so those bars show sand and gravel only and the three states are left out of both groups. And a state’s output says where material is dug, not where it is used: aggregate rarely travels far, so production broadly follows construction. If the geography matters, a map can still work, but its marks should be sized by tonnes, not by states, with the totals printed beside it.