Some of the issues that might lead to access restriction and closure are:

• Liability – The fear of being sued by someone in case an accident happens.
• Economic - Entrance Fees
• Mandatory guide hiring
• Private land
• Archaeological sites - rock art, cliff dwelling, ruins, etc.
• Inappropriate behavior from climbers or other users – littering, shortcuts, fire, noise, improper human waste management, etc.
• Big Development Construction – hydroelectric dams, mining areas, timber felling, etc.
• Conservation Issues - raptors nests, endemic species, fragile environment, etc.
• Accidents
• Historic and Cultural concerns - ethnic or religious, e.g. sacred places, indian reservations, etc.
• Designation restriction - when a designation establishes restrictions (UNESCO, Conservation areas, etc.)
• Permit regulations - hunting or game reserve, military land, indian reservation, etc.
• Safety issues - when an environment threat is imminent: avalanches, natural rock falls, etc.
• Violence / crime - area with high incidence of crimes: petty theft, drug dealers control, civil war, etc.