Don't feed the bears, feed the burrs
A handy (literally) burr grinder is a wandering coffee-lover's best friend. This compact GSI model snaps conveniently into cylinders of various sizes, and can even attach directly to one of the outdoor-gear manufacturer's travel press pots for ease and cleanliness. Preweighed batches of beans in spice jars are easy to tote along (and ration, if needed) for longer journeys, and grinding as needed will keep the coffee fresh, even while you're on the trail.
Cross out the "Grill" on your "Kiss the Grillmaster" barbecue apron and replace it with "Roast," as thanks to the roasting drum add-ons from Coffee Roasters Club. Handmade by a husband-and-wife team for a decade, CRC's roasters come in a variety of sizes (from 8-ounce to 5-pound capacity) and get rigged right up to your existing rotisserie, so you can spin your way to fresh batches of beans. (Green, or unroasted coffee beans, are available from multiple sources; check out Sweet Maria's for some popular options.)
Available at coffeeroastersclub.com, starting from $30.
Propelled by propane
For serious and big-group campers, a propane-heated coffee pot brings the convenience of a countertop brewer to the great outdoors, and can handle big batches either to share as the sun rises or pour off into thermoses for a day's adventures.
This Coleman propane coffee maker will brew up to 10 cups in the time it takes to pack up camp, roll up sleeping pads, and fry up some campfire bacon. (No paper filters required: it comes with a reusable filter basket for easy cleanup.)
Available on Amazon for $90.
Espresso marks the spot
Despite GSI Outdoors' unfortunate use of "x" in the name of its Mini Expresso makers, the 1- and 4-cup brewers are a durable, compact trailhead option for brewing a potent little cup on a cookstove, hotplate, or other low-to-moderate heat source. Make a concentrate and dilute with hot water if you're brewing for a crowd, or simply slug the "expresso" yourself if you've got a particularly choppy ride ahead of you.
If a shot pulls in the woods…
As slick as it is rugged, the Handpresso Wild could be mistaken for a hunting pistol, but it produces a totally nonviolent kind of shot instead. Tuck the fly carrying case under your arm or into a travel backpack and you'll be ready to whip it out on a moment's notice anywhere on the trail.
Using tire-pump-like pressurization, the electricity-free maker will not necessarily give you café-quality espresso—its brewing pressure can be as high as 16 bars, which is considerably stronger than most commercial machines use, and bigger numbers are not necessarily better, in this case—but it is one of the most travel-friendly shot machines available. (Note that the Wild Hybrid takes both pods and the preferable fresh-ground coffee; the original Wild is pods only.)
Available on Amazon for $139, case also available.