 To build them, they used planks of driftwood pine that were sewn together with vegetable fiber cord, edge to edge, and then glued with the tar that was available either from the La Brea Tar Pits, or as asphalt that had washed up on shore from offshore oil seeps.The finished vessel was caulked with plant fibers and tar, stained with red ochre, and sealed with pine pitch.The "te'aat", as noted by the Sebastián Vizcaíno expedition, could hold up to 20 people as well as their gear and trade goods.