Thursday, January 31, 2013

The Caliche Pits of West Texas


The Caliche Pits of West Texas

When I was born during the Great Depression, my dad had a part-time job guarding a “caliche pit” just east of the nearby town of Wellman, TX.  There was heavy equipment in the pit, used for digging and crushing a soft rock called “caliche.” During those hard times, theft was rampant as people struggled to survive the depression.

Although Caliche layers keep the surface of West Texas soil limited in the types of vegetation that can grow upon them, the substance was invaluable in surfacing country roads before the more expensive asphalt became more affordable.  Although surfacing a road with caliche made it smooth and impermeable to rains, roads surfaced with it became as slick as greased glass in rainy weather.   A motorist had to be careful not to slide off it and get stuck in what was called “the bar ditch,” a depression off each shoulder used to collect runoff water.  

How caliche subsurface in West Texas affects the type of vegetation that can grow there:

“Caliche beds can cause many problems when trying to grow plants. First, an impermeable caliche layer prevents water from draining properly, which can keep the roots from getting enough oxygen. Salts can also build up in the soil due to the lack of drainage. Both of these situations are detrimental to plant growth. Second, the impermeable nature of caliche beds also prevents plant roots from going through the bed, which means the roots have a limited supply of nutrients, water, and space, so they cannot develop normally.”  (From Wikipedia definition).

So, the low, tough vegetation one sees on the Texas plain is influenced more by the subsoil than the 18 inches or so of rain that is normal for the area.

On the Texas plains, abandoned caliche pits became substitutes for “lover’s Lanes.”  As a beginning writer some forty years ago, I wrote a short story (titled “The Caliche Pit,”) about a small West Texas town, manned by a two-man police force, one of them the “chief” and the other a new rookie, who had more to learn about small town policing than the criminal code teaches.  While patrolling outside the perimeter of the town, the “chief” decided to check out the local caliche pit.  There was one car parked in the pit, and the chief drove to the bottom of the pit and circled it.  He did not stop to check out the occupants of the car.  When queried by the rookie  as to why they did not check out the occupants of the car, the chief replied that, in a small town, the first thing one must learn is to be blind to some things. The chief had noticed a prominent, local, married couple in the car, married to someone other than each other.
When I queried the below link on caliche pits, I found the first answer, by “steve’o”  interesting, and not inconsistent with my image of the “local caliche pit,”  one of which seems to be near all  small West Texas towns.


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