Photos: Saguaro National Park through the years

Entrance fees at Saguaro National Park will increase from $10 to $15.

Once you get past seasonal bottlenecks, though, "we have plenty of room" in the park.

Wild animals and outdoor enthusiasts could one day hike freely between Saguaro National Park and Pima County’s Sweetwater Preserve, thanks to …

The bill would authorize the secretary of the Interior to acquire 1,232 acres and add them to the park.

Getting a leg up on everyone else in his age group, Gov. Doug Ducey got his first dose of the COVID-19 vaccine Tuesday. But his press aide insists he wasn't jumping the line.

Upping the stakes in a political feud over the 2020 election, Rep. Mark Finchem, R-Oro Valley, is suing a Democratic lawmaker, charging she "smeared'' his name.

Whether Arizona gets to keep its ban on ballot collection or "harvesting'' could depend on whether ax-legislator who first proposed the law was trying to suppress minority votes.

Experts are tracking an unprecedented outbreak of blooms in strange locations on saguaros across Southern Arizona. Environmental stresses could be to blame.

The wildlife service decides the Sonoran desert tortoise isn't a threatened or endangered species, but finds a wide range of threats to the animals and their habitat.

Saguaro National Park will survey visitors after posting its busiest year on record. The goal is to find out how many visitors are locals and how many are from out of town, as well as what other amenities they'd like to see.

Heavy maintenance and restoration work are required to conserve this popular Tucson hiking trail system. 

Surveyors combed canyons and the upper reaches of Tucson's Saguaro National Park to find rare plants, some thought to be extinct locally, and new plant species. 

Seasonal winter trail crews for the National Park Service working in Tucson and Southern Arizona are improving trail safety and repairing dama…

Volunteers are welcome to help Saturday to pull the invasive weed that fuels wildfires deadly to saguaros and other native plants.

This Manning Camp wilderness ranger hikes 10 miles to get to her job, which supports field work crews in Tucson's Rincon Mountains.

Ranger-led tours will highlight the nighttime splendor of Saguaro National Park.

An air tanker drops retardant as it attacks the 50-acre Molino Fire near milepost 4.5 on the Mount Lemmon Highway. The Mesa Hotshots will acco…

The free admission is in celebration of National Park Week.

Meanwhile, a photo-mapping system tracks whether visitors are taking fossilized wood from Arizona's Petrified Forest National Park near Holbrook.

On any normal day, a weekly pass into Saguaro National Park costs pedestrians and bicyclists $5 — $15 if you have a car.

A well-organized group of east-side residents is deeply opposed to the proposed resort.

Saguaro National Park rangers are searching for those responsible for hacking into eight of the park's namesake cactuses earlier this month.

On Nov. 9, the Trump administration issued a directive letting local and state officials easily block federal land acquisitions using a fund Trump had bragged about saving.