Wireless Sensor Network (WSN) is set of thousands or more micro sensor nodes having the capability to process gather and transmit data to any one of the designed base station. WSN is that they have limited battery power, storage and data processing capabilities. Out of these the primary challenge is energy limitation and prolonging the network lifetime especially for sensors deployed in environments like battlefield surveillance, weather monitoring, disaster management that are not easily accessible. In this paper, Logical Tree based Routing Protocol (LTRP) is proposed to prolong the sensor network lifetime. Simulations using network simulator Ns 2 have been conducted to study the behavior of the routing algorithm for five different node distribution patterns.