Banda Research Project team members use a datum string, pulled tight and leveled with a bubble level, to measure the depth below datum of the excavation unit's surface. Yaw Francis (right) holds the string level as Yaw Frimpong (left) measures the depth close to the bubble level. By taking periodic measurements as they dig across the unit, they ensure that the surface of each completed level is even. A head pan and short handled hoe sit next to excavated dirt in the unit. Maria Dores Cruz (far left) and other team members work on an adjacent excavation unit on Mound 6, Station 6. Makala Kataa, 1994.
In preparation for beginning excavation of a new 2 x 2 m unit, Banda Research Project team members Leith Smith (right) and Victor Mattey (left) extend grid points on Mound 6, Station 6, Makala Kataa. Smith uses a rock to pound in a grid peg at a point established using tape measures extended from previously placed grid pegs. The accuracy of the peg's location in this 2 m interval grid is checked according to horizontal (2 m) and diagonal (5.66 m) measurements from the other unit pegs. Low piles of sieved dirt from ongoing excavations are visible in the background. Makala Kataa, Station 6, 1994.
Banda Research Project team members use a datum string pulled tight and leveled with a bubble level as a reference for measuring the depth below datum of the excavated surface. Alex Ababio (right) holds the datum string level and tight while Osei Kofi helps another team member to straighten the tape measure in order to make an accurate measurement. A short handled hoe lays in the bottom of the unit. Timothy Fordour stands nearby (far right) by a headpan. Mound 3, Station 10. Makala Kataa, 1994.
Members of the Banda Research Project, Maria Dores Cruz (left) and Osei Kofi (right) stand near a surveying level mounded on a tripod. The level was used to map the site's contours and establish grid lines to orient excavation units. A local-made short-handled hoe lies in front of the tripod, its wide flat blade standing upright. Bottom left are stacked headpans used to move soil between excavation units and screens. Station 6, Makala Kataa, June 1994.