of broad categories, and their spatial organization is outlined in the map. The categories include: (1) primary or major brothels, (2) secondary brothels, (3) "cribs" of freelance prostitutes, (4) cantinas and bars catering to local patrons, (5) transvestite bars, (6) other commercial services, and (7) residences. Furthermore, Boy's Town is protected by a substation of the municipal police complete with jail, and there is a health clinic that performs blood tests and weekly screenings of sex workers for venereal diseases. Establishments and services exhibit a typical distance decay pattern. All but one of the primary brothels are located near the entrance, secondary brothels and cantinas are located farther from the entrance, and the transvestite bars are concentrated at the far end of the compound. Even the cribs exhibit a distance-decay pattern in that the younger more attractive prostitutes occupy cribs on the central lane (Cleopatra Street), whereas older, or less attractive women rent cribs on the south most lane or in the back near the transvestite bars. This pattern is primarily a function of rental rates for the cribs; being less expensive in the southwest corner of the compound. Cantinas and bars The cantinas and bars constitute a significant component of the economy. Most do not operate as brothels, but are instead venues for inexpensive drinks (usually just beer and tequila), live music, and dancing. Some are staffed with women who dance with customers for a few pesos. They provide an inexpensive environment for local males (and occasionally couples) to relax, listen to Cumbia, Norteño, or Ranchera music, and dance late into the night. Several are patronized by off-duty prostitutes and their boyfriends or husbands after working hours in the early morning. Some transvestite bars also serve as brothels catering to clients who seek to have sex with transvestites, transgender individuals, or homosexual men. They also serve as social entertainment venues for local transvestites and homosexual men themselves. Customers are almost exclusively local males. Other commercial services In addition to entertainment facilities, a number of small restaurants and street eateries cater to patrons visiting the bars and brothels and to the individuals who live and work there. Other services include small convenience stores, clothing stores, seamstress shops that tailor outfits for the sex workers, and a photo studio. While accurate figures of the total number of individuals residing in Boy's Town are not available, they range into the hundreds. Many