Clackmannan is a small town as well as civil parish set in the Central Lowlands of Scotland. Located within the Forth Valley, Clackmannan is 1.8 miles (2.9 km) south-east of Alloa and 3.2 miles (5.1 km) south of Tillicoultry. The town is within the region of Clackmannanshire, of which it was formerly the county town, until Alloa surpassed it in size and also value. According to a 2009 estimate the population of the settlement of Clackmannan is 3,348 locals. The name of the community describes the Stone of Manau or Stone of Mannan, a pre-Christian monument that can be seen in the town square next to the Tolbooth or Tollbooth Tower, which dates from 1592. During the 12th century, the location developed part of the lands regulated by the abbots of Cambuskenneth. Later on it became related to the Bruce household, that, during the 14th century, built a critical tower-house. It still stands above the community according to Historic Scotland, but access is restricted (as a result of decrease). A crater on asteroid 253 Mathilde is named after Clackmannan. Due to the fact that Mathilde is a dark, carbonaceous body, its craters have been called after well-known coalfields from throughout the world. The Clackmannan Team is the name offered to a suite of rocks of late Dinantian and Namurian age put down throughout the Carboniferous period in the Midland Valley of Scotland. The war memorial was designed by Sir Robert Lorimer in 1919.