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.
Yes, in most cases Public Records are available to the public. Some documents, such as certain court records, confidential personal information, and other sensitive information may be kept sealed or is only available with a court order. In certain states, there is a waiting period to obtain Public Records that reveal private information. Which government agencies provide Public Records? A number of government agencies maintain Public Records and make them available to the public. At the local level, many Public Records are held by County Clerk's Offices or Vital Records Offices. State Departments of Revenue or Departments of Health keep Public Records. At the federal level, the National Archives and Records Administration (NARA) is one agency that has Public Records.