On a sectional chart an open magenta circle with a H in it depicts a heliport. You don't often see this symbol because chartmakers only depict selected, public-use heliports. When shown, adjacent to the symbol are the heliport's name, its alphanumeric identifier, and its elevation. There is no runway information because hiliports don't have them. Because the symbol doesn't have tick marks around it, services such as fuel aren't available - maybe. Find the heliport's entry in the Airport/Facility Directory or a commercial equivalent and call the heliport to be sure.
As defined by Advisory Circular 150/5390-2A, "Heliport Design," a public-use heliport is an "area of land, water, or structure used or intended to be sued for the landing and takeoff of helicopters, together with appurtenant buildings and facilities." If it's intended for night operations it will have a medium or high intensity light beacon that flashes alternation white, green, and yellow beams at 30 to 45 flashes per minute.
An in-ground H making identifies a heliport as a public-use facility. The H is oriented on the axis of the dominant approach/takeoff path and it marks the intended landing position within the FATO - the Final Approach and Takeoff Area. The AFTO is a defined area over which a pilot completes the final phase of the approach to a hover, or a landing, and from which a pilot initiates a takeoff.
The Touchdown and Liftoff Area (TLOF) is usually centered in the FATO and is a load bearing, generally paved area where the helicopter lands or takes off. A 12-inch-wide line defines the limits of the intended landing surface, and it should provide at least 10 feet of clearance to any object that could be struck by a helicopter's main or tail rotor. In addition, a safety area equal to one-third the rotor diameter of the helicopter the heliport is designed for, but not less that 20 feet in width, should surround the FATO.
