2,088 acres of thick, brushy growth, typical of Valley before agricultural development. Preserves and protects abundant wildlife and plant species. More than 400 species of birds can be seen throughout the year, many found nowhere else in the country. Inter-pretive wildlife tram rides operate late Nov. - late Apr. (fee). 19 miles of self-guided nature walks; one for wheelchairs. Bicycling allowed on seven-mile paved route. Rio Grande canoe trips available by reservation through the Friends of the Wildlife Corridor; www.corridorfriends.com. Entrance .25 miles east of U.S. 281/F.M. 907 inter-section, 7.5 miles south of Alamo.