Vertical Datum: LAT Quality of Depth: SWS The URSUS was mined while on passage Uddevalla to Rochester, 1939. 12-JAN-1940 Sank approx 5 miles ENE of Tongue Ltv. 23-AUG-1942 Wreck, with mast showing, in 51 33 15N 001 28 30E, approx. 10-AUG-1943 Wreck in 51 33 06N 001 29 46E. 26-AUG-1946 S part wreck dispersed to 45ft. Drift swept- clear at 48, foul at 49ft, least echosounder depth 48ft in general depth 56ft, position 51 33 07N 001 29 53E. 23-JAN-1970 Examined by drift sweep and fishermans asdic in 51 33 03N 001 29 49E. Clear at 14.2, foul at 14.5m, least echosounder depth 15.4 in general depth 16.3m. Scour depth 17.8m. 09-SEP-1988 Examined in 51 33 05N 001 29 54E. Swept clear at 14.4, Foul at 14.8m. Least echosounder depth 14.4 in general depth 16m. Scour depth 18m. No sonar height obtained. Length about 25m, lying 026/206 deg [grid] in its own scour. Magnetometer anomaly evident.

Vertical Datum: LAT Quality of Depth: SWS The URSUS was mined in 1939. 26-AUG-1946 Dispersed to 45ft. In 2 parts - northern drift swept -clear at 46, foul at 47ft, least depth 46ft in 51 33 11N 001 29 48E. General depth 52ft. 08-OCT-1969 In 51 33 07N 001 29 53E. 2 Ship drift sweep - clear at 13.7, foul at 14.5m, least echosounder. Depth not given - general depth 16.3m. Scour depth 17.8m. 17-AUG-1988 In 51 33 10N 001 29 53.5E, least echosounder depth 15.2 in general depth 15.5m. No scour. Very small object about 150m N of S part of wreck. Area has shoaled since 1969 survey and wreck has probably been covered.

<1> Hydrographic Office wreck index, Extracted 20-JAN-1993, Page Nos. N/a (Bibliographic reference). SKE6339.