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Important dates for 2015:

Half Dome Cables Season:
Friday, May 22, 2015 - Cables up for the season (conditions dependent)
Tuesday, October 13, 2015 - Cables down for the season

Preseason Lottery:
Sunday, March 1, 2015 - 12:01 AM Pacific - Start of Preseason Lottery Application Period
Tuesday, Mach 31, 2015 - 11:59 PM Pacific - End of Preseason Lottery Application Period
Sunday, April 12, 2015 - 9:01 PM Pacific - Preseason Lottery Results posted
Wednesday, April 29, 2015 - 11:59 PM Pacific -Deadline to confirm and pay for reserved permits

Daily Lottery:
Wednesday, May 20, 2015 - First day of Daily Lottery, 2 days before cables up for the season
Sunday, October 11, 2015 - Last day of Daily Lottery, 2 days before cables down for the season

Variations in the start and end dates of the Half Dome Cables Season
Traditionally, the Half Dome Cables have been installed and maintained for a hiking season starting on the Friday before Memorial Day and ending on the Tuesday after Columbus Day. Environmental conditions dictate the actual date the cables are put up, maintained, and taken down for the season.

During years with heavy winters, large snow packs, or late winter storms, the installation of the cables may be delayed beyond the traditional start date. Preseason permits issued for dates when the cables are not up will be refunded. Refunded permits may not be rescheduled. Lottery application fees are not refunded. The Daily Lottery will not run until two days before the actual date the Half Dome Cables are put up.

During years with mild winters and small snow packs, the cables may be put up earlier than the traditional date. In this circumstance, the Daily Lottery will begin two days before the actual date the Half Dome Cables are put up.

Once the cables are installed for the season, they generally remain open. Should the cables be closed for some unforeseen condition, then permits issued for those days will be refunded. Only the permit fee is refundable, Lottery Application fees are not refundable. Permits refunded due to a closure may not be rescheduled.

Refunds or date changes are not available because of inclement weather. Hikers must always use proper judgment when assessing whether or not to proceed to the summit.

For more information about hiking Half Dome please visit:

Attention: Before visiting Yosemite National Park for safety information click on this link: For safety information specifically regarding hantavirus, go to


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