Monjeau Lookout is a historic fire lookout tower in Lincoln National Forest north of Ruidoso, New Mexico, built in 1940 by the Civilian Conservation Corps for forest fire detection and still used as a visitor destination. Unusually solid for a small lookout, it was constructed of native stone on a 14-by-14-foot footprint with living quarters inside and a 7-by-7-foot metal-frame cab above. Its integrated quarters and lookout space reflect the practical design of remote forest stations of its era. The tower is recognized on both the National Register of Historic Places and the New Mexico State Register of Cultural Places.