Archaeological survey work carried out in the summer of 1977 involved the following % ty ypes oz investigations: — 7 ren . r aeological sites. curren ely on and/or potentially impacted. e pondage shoreline- 0152205 d sites-in terms of social. (2). Evaluation of endangere and scientific perameters Systematic cutee: coll et ions of sites had originally 'In field? examination of-e posed sites,: and. surface. collection. of one site resulted - in “reversing- our de cision, to carry out extensive investigations of this type. “The major reason for this’ change, of ected-.for collecting had ‘been "picked clean! by local collec . Furthermore, erosion of most ct OQ 5 Wy sites was so extensive tnat systematic surface ‘collection was imoractical. . sos