Thus, contrasting cultures existed on opposite banks of the river. In this section the architecture of the western bank will be explored through an explanation of its extant architecture as evidenced in housing, out-buildings, churches and commercial buildings. THE LOG HOUSE, 19TH CENTURY The early North Louisiana pioneers were more concerned with the erection of a shelter for protection from the elements and wildlife than they were with architectural styles. Folk houses were constructed of either horizontal logs or wood frame. The typical log folk house plans of the mid 19th century in the hilly country were the single pen (room) wide and the dogtrot. The dogtrot plan consisted of the two single pens (rooms) separated by a floored and roofed but open walled space. (The designation “pen” is used only in reference to the rooms built of log construction). Folk house plans constructed of wood frame during the 19th century were the one room, two room, saddlebag, dogtrot, central hall and later the gable front and wing. These house types will be examined subsequently. Pictured on this page are examples of log construction. In figure 4 the logs were split; the inner room wall surface would be even. In figure 5 may be seen several elements of folk log house construction in the drawing of a house being dismantled. This dogtrot with open passage between pens had an attached porch, square logs with square notches, an end exterior chimney (base visible), three inch round pole roof rafters and gallery door openings with the head occurring at the seventh log. In figure 6 a close-up detail shows the square hewn logs and square notches on this dogtrot. [Illustration: _Fig. 4. Log notch detail (Bldg. 76)._] [Illustration: _Fig. 5. An 1880’s square notch log dogtrot (Bldg. 6)._] [Illustration: _Fig. 6. Square notch detail (Bldg. 6)._] [Illustration: _Fig 7. An 1898 central-hall house with integral gallery (Bldg. 55)._] [Illustration: _Fig. 8. Late 1890’s gable-front-and-wing house (Bldg. 15)._] [Illustration: _Fig. 9. Late 1880’s two room house with vertical board and batten siding (Bldg. 77)._] THE WOOD FRAME HOUSE, 19TH CENTURY During the late 19th century and early 20th century wood frame construction was used to build high style and vernacular houses in the Greek Revival and Queen Anne styles. Figure 7 depicts a late vernacular Greek Revival house with a symmetrical plan, and figure 8 shows a Queen Anne house with asymmetrical plan. The central hall plan in figure 7 has a steep roof with an integral gallery. Windows are six lights over six lights. A wing was attached to the rear. The original chimney is still visible.