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 records. Public records are documents or pieces of information that are not considered confidential and generally pertain to the conduct of government. For example, in California, when a couple fills out a marriage license application, they have the option of checking the box as to whether the marriage is confidential or public. Essentially, if the marriage record is public, a copy of the record can be ordered from the county in which the marriage occurred.