101
and power station area, the Corozal/Cardenas area, and the Sosa hill area.
The Canal operating area described generally above, with the two exceptions hereinafter referred to, is identified on the iap which is attached hereto as Attachment No. 1 in the manner indicated on the legend thereof. Although not so identified on the referenced map, the land and water areas which lie beneath the Thatcher Ferry Bridge and any new bridge that is constructed along the Panama/Arraijan right of way, to the extent that they are within the boundaries of the Canal operating area described in subparagraph l(a)(i), above, are included in, and are parts of, that Canal operating area.
(iii) Barro Colorado Island, in the event and at such time as the Smithsonian Tropical Research Institute or an organization of similar purpose discontinues its activities there. This island is identified by name on the map attached hereto as Attachment No. 1.
(iv) Summit Naval Radio Station, at such time as use of the area is no longer required by the United States Forces. For purposes of this provision, this area is identified by name on the map attached hereto as Attachment No. 1.
(b) The Canal Zone Penetentiary shall cease to be a part of the Canal operating areas three years following the entry into force of this Agreement. For the purposes of this provision, the approximate center of this area is located at Coordinate 441069 cn the map attached hereto as Attachment No. 1.
(c) The following areas shall cease to be a part of the Canal operating area five years following the entry into force of this Agreement:
(i) The Mount Hope warehouse area; and
(ii) The Mount Hope motor transportation area.

TIAS 10031