There are campgrounds on both rims with toilets but no showers. There is drinking water available only from mid-May through mid-December, and because it must be trucked in, filling of RV water tanks is not permitted. The South Rim Campground, which rarely fills, has 88 sites (23 of which have electric hookups); some sites are open year-round. The North Rim Campground, which is open spring through fall only, has 13 basic sites and occasionally fills up. Sites at the North Rim Campground are available on a first-come, first-served basis, while some sites in the South Rim Campground can be reserved (www.recreation.gov; tel. 877/444-6777), with a $3 reservation fee. Cost is $12 per night for basic sites and $18 for sites with electric hookups. RVs over 35 feet long are not recommended in either campground.

Campgrounds with hot showers and full RV hookups are available in Montrose. These include Cedar Creek R.V. Park, 126 Rose Lane, Montrose, CO 81401 (www.cedarcreekrv.com; tel. 877/425-3884 or 970/249-3884), which is open year-round, with spacious sites, lots of mature trees, and attractive landscaping. There are 47 RV sites (both full hookup and water and electric only), including large pull-throughs for big rigs, a shady creekside tent area, free Wi-Fi and cable TV, a coin-op laundry, a well-maintained bathhouse, 18-hole minigolf, a playground, propane, and a dump station. Tent sites are $25 per night, and RV sites run $29 to $35 per night. There are also several camping cabins, which share the campground's bathhouse, at $42 double; and deluxe cabins with full bathroom and kitchen for $99 double. Major credit cards are accepted.

Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.