Crevasses often have vertical or near-vertical walls, which can then melt and create seracs, arches, and other ice formations. These walls sometimes expose layers that represent the glacier's stratigraphy. Crevasse size often depends upon the amount of liquid water present in the glacier. A crevasse may be as deep as 45 metres, as wide as 20 metres, and up to several hundred metres long.
When in outdoor public spaces where you are legally present, you have the right to capture any image that is in plain view (see note below about sound recording). That includes pictures and videos of federal buildings, transportation facilities (including airports), and police officers.
PUBLIC INFORMATION [OPEN RECORDS] REQUESTS. Requests for access to or copies of county government public records should be made in writing directly to the department that has custody of the records. In county government, each elected official is the public information administrator of his department. No department has control, possession or authority over the records of any other department. A request made to the wrong department can cause unnecessary delay.