bolson means A relatively flat and arid valley that is surrounded by mountains and that drains into a central basin. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Etymology
From Spanish bolso (“a large pouch”).
noun
- A relatively flat and arid valley that is surrounded by mountains and that drains into a central basin.“In three separate bolsons in West Texas, electrical-resistivity soundings and seismic-refraction profiles have been used . . . to estimate the alluvium thickness and ground-water quality.”