Timed entry, permits, lotteries and tickets now sit between visitors and a large share of federal destinations. The hard part is knowing which ones need a reservation at all, and how far ahead people actually booked them.
ReserveGuide covers 309 reservation products across 140 destination hubs, using FY25 data spanning 1 October 2024 to 30 September 2025. Each entry carries the order volume for the year, a median observed booking lead time and a demand band, so a Rocky Mountain timed-entry pass with 567,485 orders and a 25-day median lead reads differently from a permit that clears the same week.
This is historical reservation data, not live availability. The product is explicit about that distinction: it tells you what demand looked like, not whether a slot is open right now.