About This Lesson This lesson about frontier life in Texas is
based on the National Register of Historic Places registration
file, "Castolon Historic District" (with photographs), and other
source materials about Castolon and ranching in the Big Bend
region. It was written by Carol E. Sperling, former Supervisory
Park Ranger at Big Bend National Park. TwHP is sponsored, in
part, by the Cultural Resources Training Initiative and Parks as
Classrooms programs of the National Park Service. This lesson is
one in a series that brings the important stories of historic
places into the classrooms across the country. Where it fits
into the curriculum Topics: The lesson could be used in teaching
units on westward expansion or United States geography. Students
will practice skills of map reading, and analysis of photographs
and primary documents. Time period: Late 19th century to early
20th century Relevant United States History Standards for Grades
5-12 Relevant Curriculum Standards for Social Studies Find your
state's